After during the Festival, the Teammates crew find that the Destiny bounty is stolen by thieves. They chase after it and encounter the The leader of the little helpers and his sacks, who plan on destroying crystal stone called the magical clock from Spring forest island becoming the worlds greatest fighters. They then encounter the soul eater puppets, a group of dangerous dolls and puppets with their leader, toy King, who intends on becoming The King. After Jones's girlfriend is kidnapped, the Teammates crew journey to Spring forest Island and challenge the Soul eater puppets to a great battle in Soul eater Castle.
The prologue begins with the Teammates crew on the party. Darlyn sits on a chair by the side, winding up a music toy, while Zane does pushups with large bags on his back. Kai lies pool as Cole comes up to him, put mouse in pool as Kai screams in fright. Pyhtor runs up and sits down in the sand as Darlyn looks at the Destiny bounty, noting how cool it is. Pythor notices that the Destiny bounty is starting to fly away, and Wu and garmadon freak out. Darlyn tries to stretch out her fishing rod to reach it but stops short of reaching the bow before the rod retracts. The heroes are then left on the house yelling at the thief to give back their ship.
The movie begins with the Heroes are shown cramped on a small swan paddle boat to chase the thief wearing clothes for jones and emmy's wedding ceremonies as their regular clothes were stolen with the Going Merry (except the teammates crew, who was wearing their kimono outfit). They come across an elf and gingerbread boy struggling in the water, and cole dives in to save them. However it ends up being a trick as all of the The heroes ends up getting captured by a net, lifted up and out of the water. They are brought down on the deck of another ship, where a the little helper's boss in a pilot's uniform stands. He introduces himself as the The leader of the little helpers and his sacks as Darlyn and Lloyd's little helpers introduces themselves as ginger,elf and sarah, and they are the The leader of the little helpers and his sacks. They declare they will become the greatest fighters in the world and destroy crystal stone called the magical clock from Spring forest Island, which jones explains is one of the greatest artifacts in the world.
Darlyn asks little helpers's boss about the Destiny bounty, which he replies was taken by the Soul eater puppets. He shows the wanted posters of Money doll Dennis, Honey doll, Skunk animal boy, Cassie Jones (jones's cousin), her former boyfriend, James snow and toy King to them. They then find a fleet of ships coming toward them, the fleet of the Soul eater puppets. In the crow's nest of one of the ships is Honey doll completely naked taking a bath. Money doll Dennis then jumps out and declares that their boss, Toy King, will become the King. Money doll Dennis and Honey Doll order an attack, so the clowns of the Soul eater puppets start leaping down to attack the Heroes. The Heroes manage to fight them off, but Money doll Dennis himself leaps down, curling up and becoming a big spiky white ball.
Kai places his eyeglasses on Emmy's wedding dress as they gets ready to fight. Pythor declares his plan, "Running is Winning", and has their boat flee from the Soul eater puppets' fleet. In the chaos and terror, the The leader of the little helpers and his sacks lose a small box, so Sarah leaps into the water after it as elf whacks Pythor in the head to stop him. Sarah retrieves the small box, but Honey Doll arrives, standing on the back of Money doll Dennis in the water, and monkey doll Dennis hurls bombs at the boat, blowing it apart. Monkey doll Dennis and Honey Doll kidnap emmy, as she is a great villainess, and throw another bomb to make their getaway. Darlyn sinks below the ocean's surface, but Cole manages to retrieve her.
The remaining Heroes huddle aboard the wreckage with the The leader of the little helpers and his sacks with The leader of the little helpers deploying a parachute as a makeshift sail. Jones blames The leader of the little helpers's going after the music box for the reason emmy was kidnapped, but The leader of the little helpers explains that it is the only thing elf and ginger has left of their hometown. A brief flashback shows how when young The leader of the little helpers found elf and ginger, the lullaby of the music box was all that could calm him down. Darlyn asks if that means they are not family, but The leader of the little helpers replies that they are family even if not through blood. As they sail along, jay spots a whirlpool, and garmadon says that it means they are coming close to Spring forest Island. On Spring forest Island, in a great castle, Toy King sits on his throne while two scientists explain the situation to him. They say the weapon of mass destruction he is having them build has spilled too much blood, but Toy King does not care and orders them back to work, as he will need the weapon to conquer the seas and become King. Honey Doll and Monkey doll Dennis come into the room carrying emmy, and Skunk Animal boy looks all over emmy creepily. Toy King asks if emmy will be his bride, and she glares at him, so Toy King says that she is his type. Emmy tells Toy King that she cannot stand hairy men, so he offers to shave, but then says that she hates weak men more, doubting that Toy King could beat Darlyn. Honey Doll and Monkey doll dennis show Toy King the wanted poster of kai's former girlfriend,Skylar Chen, and Cassie jones and James snow says that zane must be with him too. Toy King declares that he will kill Darlyn and use his bounty to fund his wedding with emmy.
Meanwhile, the heroes and the The leader of the little helpers and his sacks arrive on Spring forest Island, and immediately start heading up the winding stairs to the town that is at the top. The way is laden with traps, though, and the stairs turn to a ramp as they start to slide down, water rushing toward them. Darlyn grabs on and uses her rope powers to stop them from being skewered upon spikes, and as boulders come rolling toward them cole leaps from wall to wall, kicking them away. Zane reaches down and tears up the floor so that they can walk up the path to the top. They arrive at Spring forest Town, a fun place with new places everywhere, and a large tower, Soul eater Castle, is in the center. At the top of the tower wu can spot the Destiny and bounty. The heroes decide they will get new clothes (expect jones who run to castle to save her.) and grab a bite to eat before rescuing emmy, much to Wu and garmadon's shock.
Kai, Zane, jay, and cole get new clothes that are much easier to move in, and the group heads into a sort of shop. Darlyn and Lloyd says Spring forest Town is fun, but the two scientists at the shop disagree. They explain that they created the Magical Clock, but ever since, they have been suffering since the Soul eater puppets arrived. Ever since, they have been creating killing weapons instead. The leader of the the little helpers declares that the Teammates crew will defeat the Soul eater puppet, but they object, as they have not agreed to anything yet. Pythor says the leader of the little helpers just wants this because the Magical Clock will be easier to destroy without the Soul eater puppets around. The scientists say it will probably be better if the Magical Clock is taken away. Darlyn then says that you cannot make a fortune without risking your life, so they decide to set out, after Kai met his former lover, Skylar chen was created as puppet by Kai's father. As the group leaves, the scientists find a music box on the ground, realizing that the boy was ginger and elf.
In Trump Castle, emmy was dressed up in jungle outfit by soul eater puppets. Honey Doll gets up and walks away, dropping off her clothes and turning into water as she slides into a pipe. Monkey doll Dennis decides to go too, wheeling off down a rope. Outside, The other characters are hauled up in a small basket along a rope, high above Spring forest Town, toward Soul eater Castle. Darlyn notes that the music toy below look just like her music, and she takes it out and finds it is broken. Sarah quickly fixes it. Suddenly, Honey Doll forms before them, and monkey doll Dennis arrives as well, tossing her clothes to her.
Honey Doll declares she has eaten the 500 lives, and so Monkey doll Dennis throws balls at them. Jones who arrives and leaps out to punch him away, but spikes protrude from Monkey boy Dennis's ball, piercing right through Jones's fist. Jones screams out in pain as he starts to fall. Garmadon catches him only to drop him when Honey Doll floods their airship. Jones then falls and hits the ground, hard. A mine then nearly blows jones up. He is then quickly tied up by Honey Doll and Monkey doll Dennis and brought to Soul eater Castle. Jones is dumped before Toy King and emmy, and toy King says he did not kill jones because he is emmy's boyfriend. Emmy proceeds to deny caring for him anymore. Toy King then sends Skunk Animal boy to get rid of the rest of the heroes.
Meanwhile, at the gate to Soul eater Castle, the group, minus jones, has arrived and elf and ginger goes on about how if he was captured, Sarah would save him no matter what, and the others see that sarah has a metal gloves. This irritates jay, who says that it does not matter at sea, and how he hates live action children who depend on others to save them. Darlyn then says it's time to get going, and she tells Her little helpers to stay behind if they's afraid. She uses her fire amber fist to knock down the door, and she charges in, but is quickly mobbed by a huge group of clowns. Zane runs in after him to help. Meanwhile, back in Soul eater Castle, James snow notes how zane finally arrived and Cassie despair.
Suddenly several minions, formerly under Dr. Phineus Phibes, arrive with the Blood Cannon, which is now completed. They dance, proclaiming about how much better Toy King is than Dr. Phineus Phibes. Jones apologizes to emmy about how he could not do anything because he wanted to use only his own strength to show off to her. Toy King interrupts, demanding what jones's relationship with his "fiancee" is, and jones replies that he "marrying her as his wife". This makes Toy King angry, and after beating jones up declares that he will have jones crucified.
Down below, Luffy and Zoro fight through the clowns when Skunk animal boy arrives, standing on a tall pole. He points them toward jones's friends, who is hanging from a cross up high outside the castle, and so he unleashes a cloud of gas, gas that will make those who inhale it paralyzed. As Their strength start to fail, Pythor turns to elf and ginger, declaring how brave he can truly be. Pythor scales the pole and grabs Skunk Animal noy around the legs, holding the flap that releases the gas shut, yelling for the others to go on ahead. Skunk Animal boy becomes furious, trying to shake Pythor off, and Pythor has to put his mouth over the gas release to keep the gas from coming out. The others see Pythor's diversion and so they rush on ahead as Skunk Animal boy launches into the air with Pythor along. He lands on the balcony of Soul eater Castle, and Pythor collapses, filled with the poisonous gas. Toy King declares that Pythor will be crucified as well, and he is put up on a cross beside jones's friends as emmy looks on in despair as jones fight him with broomstick then fail as he get put on a cross.
The heroes rush up the stairs of the castle, fighting through the enemy clowns, but as they near the top they come to a chamber where the floor and ceiling close in on them. The teammates crew and their masters struggle to hold it up as skylar and elf ate knocked out, and garmadon and wu takes skylar and elf to safety with ginger. Wu and garmadon reveals that they was the one toforce skylar to steal the Destiny bounty, as they wanted to bring their students to Spring forest Island. Zane blames it on Wu and garmadon's greed for the Magical Clock, but wu and garmadon replies that they wanted the Soul eater puppets defeated after kill Skylar so the island could be free and the Little helpers could meet their family and friend, as Spring forest island is home.
Wu and garmadon kidnap Skylar and rushes ahead to face the Soul eater puppets, leaving Their students to their fate. James snow then arrives, drawing his sword and saying how zane gave him the scar he has across his face. Zane replies that he does not remember James snow, so James snow becomes angry, using Sword of Terror to stick zane, cole and jay full of needles. Zane falls to one knee, as the needles were tipped with Skunk Animal boy's poison. Zane tells Darlyn and Lloyd to hold on a little longer as cole draws his sword and charges at James snow, but a fence comes up in front of James snow, causing zane, cole and jay to only slash it instead. James snow jabs his sword through the fence, getting zane, cole and jay in the midsection, and so he carries away the injured zane, cole and jay on the lift and he use his mouse and rat minions to scare Kai to faint then Cassie carries fainted Kai, where they are brought to Toy King to be crucified.
At the top floor of the castle, The heroes hang bound to crosses as Toy King readies to Blood Cannon to blow them all apart. He says that emmy must be overjoyed, but jones who escape from rope trap and aims a kick at Toy King after give emmy a coat, snapping how he'd rather die with his friends then emmy marry him. Toy King strikes him across the face and ripping his shirt, saying it can be arranged, and so emmy and jones is set up to be killed as well. Down below, elf wakes up to see Darlyn and Lloyd struggling under the ceiling, asking where garmadon and wu went. Darlyn and Lloyd explains wu and garmadon went to fight the Soul eater puppets by killing Skylar, so ginger, elf and sarah runs up the stairs after them, much to Darlyn and Lloyd's dismay. Meanwhile, Toy King fires up the Blood Cannon, but before he can fire, a large metal wall comes up, with wu and garmadon standing before it. They walks forward with skylar covered with dynamite strapped to her midsection, and garmadon and wu holds a lighter, ready to sacrifice Skylar for the island. Toy King only laughs, stepping forward as he says that detonating the dynamite will only destroy the island's key, which is below his feet, within the castle. If the island key is destroyed, the whole island will be destroyed as well.
Before wu and garmadon can react, Toy King starts tossing them around like a rag doll, knocking the dynamite off of Skylar. Sarah, Elf and ginger tries in vain to help Skylar and teammates crew's masters. As Skylar hits the floor, James snow picks her up angrily after skylar corrects him on a misspoken word (James snow misspeaks many times throughout the movie). Sarah, Elf and ginger then tries to defend Skylar. Meanwhile down below, Darlyn and Lloyd sees that Darlyn's music toy, which sarah kept after fixing it, is broken, so with great fury she pushes up the ceiling, forcing herself and lloyd up and through the floor of the throne room where the Soul eater puppets are.
As everyone gapes in shock, Elf and ginger picks up a stick of dynamite, notes how cool it is, and lights it. Everyone freaks out for the little helpers to throw it away, so Darlyn tosses it to the iron wall in front of their friends. It blows the iron wall to pieces, and Darlyn asks where their friends are, which the The characters reply to that the little helpers just blew them up. However, Kai, jay, zane, cole, Pythor and the others emerge from the smoke, albeit somewhat battered. With the Heores now free, the soul eater puppets burst into action. Skunk Animal boy chases Pythor up to the roof of the castle while jay runs in after him to help. Cole and Monkey doll Dennis square off, and Monkey doll Dennis laughs that jones will not be able to punch him with his bleeding fist. Pythor tosses down Cole's kimono Elements blades to him, and cole puts them on, but monkey doll Dennis refuses to believe they will make a difference. Jay shoots Skunk Animal boy in the face with a Elements blades , and as Skunk animal boy goes down he tosses zanes's elements blades down to him. Zane catches them and barely blocks James snow's sword, who took a stab at his back. Zane stands in front of alex and cathy, defending them. Toy King and Darlyn begin their fight, as disney uses Amber metal fist, but finds it has no effect. Toy King declares that his body is as strong as steel because he ate the 800.
Monkey doll Dennis curls up into a ball and charges at cole, but cole sends him careening into the roof with one punches. Cole leaps up and proceeds to punch Monkey doll boy, several more times until he drives Monkey doll Dennis down through the floor, into the island key chamber. He again drives Monkey doll Dennis into the ground, and cole stands victorious, flicking away the glass sharp, as Monkey doll Dennis lies in a bloody heap. On the balcony, zane tears off his clothes and put on kimono, assuming his three weapons stance, and he charges at James snow. Skunk Animal boy declares to jay and Pythor the power of his poison gas, and he charges at them as Pythor pretends to be frightened. At the last second jay fires his Lighting strike , striking Skunk Animal boy and causing a big explosion. Jay and Pythor falls back into the pool below while Skunk animal boy is sent flying off into oblivion. Floating in the water, jay yells that Skunk animal boy got what was coming to him. Darlyn uses Nature speed Whip on Toy King, but gets all tangled up and is knocked to the floor. Zane and James trade sword swings, engaging in a fierce duel. James snow uses Swords of terror once more, but zane blows them back with his weapon. He stands back up, and James snow says how he shouldn't be able to stand with all of the poison in his body. Zane replies that he cannot fall, because he faces a long journey and there is one man at the end of it for him to beat. Zane then uses Ice slash and takes James snow down, killing him. Upon seeing the defeat that the other soul eater puppets endured, Honey Doll flees, dropping her clothes and becoming water again, heading into a pipe, but Lloyd and cassie grabs the pipe and pours Honey Doll into a jar, which Kai screws shut and holds down.
Meanwhile, the fight between Darlyn and Toy King continues as Toy King's arm lights with fire. Darlyn grabs onto it but is singed. Darlyn King starts pounding Darlyn around, but jones fires a missile from the Blood Cannon at Toy King. Toy King is barely able to avoid it as it smashes through the window and flies out into the sky, landing in the water with a great explosion. Jones says that his next shot will not miss.
Toy King becomes furious that jones is using his cannon, so he pulls a gun and fires it at him. Skylar leaps in the way and is shot in the chest, falling to the ground. Darlyn becomes furious that kills Kai's love interest and throws toy King through the wall, causing the entire top tower to tip and water to pour down. Toy King emerges, more furious than ever, and he climbs onto the Blood Cannon and fires it at Darlyn. Darlyn catches the missile with her water gravity, twisting her power around and stretching her power way out into the sky, and so she pulls it back in, using Smoke poison fist Screw to drive the missile right into Toy King's chest. Toy King is driven through the floor and lands in the island key chamber, where there is a great explosion and the island key is destroyed, killing him.
Emmy tosses Kai's eyeglasses to Darlyn as congratulations for defeating Toy King. Srah and her friend kneels beside Skylar and sees that Skylar's chest was protected by a sheet of metal under her shirt. As they carries Skylar to safety, the Magical Clock starts chiming. All of the Heroes as well as elf and ginger recognize the sound as the music box. It is then revealed that the two scientists they had met earlier were Elf and ginger's parents.
The four head back down out of the castle to the townspeople of Spring forest Town, and meet the two scientists from before again. The scientists explain that elf and ginger is their sons, and a brief flashback shows the mother putting her sons into the water, hoping that they will escape and survive for 37.
With the key destroyed, the entire island starts to collapse, and the Destiny bounty falls from it and into the ocean. The people of the island land in the water and scramble into the boats as their island is completely gone, but they know it could not be helped and that they will rebuild a new island and a new future. On board one of the ships, elf and ginger are reunited with their parents, the two scientists from before, and they hugs their mom. As the Heroes sail in the Destiny bounty alongside leader of the little helpers and his sacks in his small ship, Skylar says that the little helpers's parents are great people and that they's better off. Skylar says they are glad to be on their own, because the Soul eater puppets' treasure is all her now. However, the little helpers jumps back onto the boat, declaring that they will continue along with their friends, and so the The other are reunited, deciding to kept the treasure between them. The ship then sails over the horizon. Darlyn recovering Jones looks relatively the same despite being healed but Skylar rapidly injure into a many wounds. Revealing her body pain, Skylar accompanies The heroes to Times Square where Skylar reminisces about her life. As the sun rises, she disintegrates into ash.
In epilogue, A few mouth later, The teammates crew show up at party house to pick up kai's girlfriend, whom they have replaced after Skylar. As Pythor scare angela, he notices that the Angela sports a set of fire.