Captain Hook plots to destroy Peter and gain his treasure all at the same time. His first part of the plan is to kidnap Wendy to lure Peter to his doom but he mistakenly takes Jane, her daughter. Fortunately for Hook, Pan arrives and Hook summons an undersea giant octopus to kill both Peter and "Wendy". Peter dives down to battle and is seemingly killed. Just as Hook begins to celebrate, Peter reveals to be alive and by using pixie dust, Tinker Bell boards the octopus onto Hook's ship. After accidentally swallowing Hook, the Octopus develops a taste and becomes another crocodile problem for the Captain. The Octopus pulls him out of the ship and into the water (the first pull accidentally pulled his pants down). Hook flies back onto the ship and gently asks Smee to fix the broken plank so he can "make him walk it!".
Later on during a massage, the Captain is again attacked by the octopus who is shooed away by Smee. This encounter angers Hook even more to the point where he gathers the pirates to sail to the island to find and kill Peter. While searching, they witness the girl they kidnapped is not Wendy but her daughter Jane and that she is desperate to return home. This gives Hook yet another plan. That night, he tricks Jane into working for him. If she can find his treasure; he'll give her a ride home on his ship. Jane acts as if she's playing the game treasure hunt to have Peter and the Lost Boys assists her. Eventually, the treasure is found but she changes her mind and throws the whistle to summon Hook into the waters. It is found by Lost Boy Tootles who blows it; calling the pirates. An ambush follows resulting in Peter and the boys being captured and taken to The Jolly Roger.
Back in the ship, Captain Hook prepares to watch Pan's death but is interrupted by Jane and Tinker Bell. A battle follows and in during which Pan is set free. Hook's anger and frustration is targeted for Jane who is the cause if his failure. Just before he is given the chance to murder her, Peter saves the day by having Hook fall into the ocean attracting the octopus. It chases Hook through the ship, now sinking. Hook and the pirates are then chased away altogether.
At the film's beginning, Frollo ambushes a group of gypsies entering Paris illegally and chases one of them to Notre Dame where he kills her. However, he discovers that the gypsy's "stolen good" was actually her deformed baby son. Believing the child to be an unholy demon, Frollo prepares to drop the child in a nearby well, but for the intervention of the Archdeacon, who reprimands Frollo for killing an innocent woman and tells him that the only way to make up for his sin is to raise the boy as his own son, to which he begrudgingly agrees. Frollo names the boy "Quasimodo" (literally "Near-perfect mode" or "Half-formed"), and raises him in the Cathedral, hidden from the outside world, constantly teaching him that he would be considered an ugly and hideous monster by the cruel outside world.
20 years later, Frollo summons Captain Phoebus to aid him in his war with the gypsies, and at the same time, Quasimodo begins to rebel Frollo's strict actions. He attends the Feast of Fools, where he becomes enamored of Esmeralda, a gypsy performing at the festival, but when Quasimodo is crowned King of Fools and then humiliated by the crowd; Frollo refuses to help him in order to punish him for disobeying him. Esmeralda openly defies Frollo for his cruelty, and in retaliation, Frollo orders her arrested. She escapes into the Cathedral, where he corners her and tells her that he will arrest her if she dares to leave. However, Quasimodo helps her escape. Frollo gets wind of this and orders a city-wide manhunt for Esmeralda, at the same time haunted by the lust he feels for her.
As Frollo nears insanity, Phoebus defies him and is ordered killed, although Esmeralda rescues him. Frollo eventually tricks Quasimodo into leading him to the gypsy hideout, the Court of Miracles, and plans to have Esmeralda executed the next day. Frollo succumbs to his desires and offers Esmeralda one last chance to live as his mistress, but she refuses and he orders her executed. Seeing Esmeralda suffering finally snaps Quasimodo and he openly defies Frollo, rescuing Esmeralda and pouring molten copper onto the streets of Paris, keeping anyone from entering the Cathedral. Frollo manages to enter and finds Quasimodo crying over Esmeralda's unconscious body. Frollo attempts to stab Quasimodo from behind, but Quasimodo retaliates and nearly kills Frollo in his rage. As Frollo goes for Esmeralda, Quasimodo takes her to the balconies and fights Frollo. During the fight, Frollo reveals to Quasimodo that he killed his mother, and eventually, the two fall from the Cathedral balcony. While Quasimodo is caught in mid-air by Phoebus, Frollo falls to his death.
The film's opening scene sees Shan Yu scaling the Great Wall of China and leading the Huns in an invasion of China, setting the tone for the rest of the film.
Later on Shan Yu has destroyed yet another village and expose two spies sent by the emperor. He orders them to pass a message to the Emperor telling to send his best men for battle. Before the two are able to leave, he murders one.
While heading to the imperial city, his falcon recovers a little girl's doll from a village. On the doll is white horse hair from the General's army. Instead of avoiding the army, he and his men plan to go that direction. His armies crush the Emperor's soldiers with ease until they get to a mountain pass where they are cut off by Captain Li Shang's troops.
The armies battle by constantly shooting canons. Eventually Shan Yu leads the Huns down to the army to attack. Though the Huns vastly outnumbered Shang's troops, Mulan managed to bury them in an avalanche by aiming a rocket at a nearby mountain. Shan Yu nearly escapes but like his men, is taken away by the snow.
Believed to be dead and defeated, Shan Yu and a group of surviving Huns were able to infiltrate the Emperor's palace and capture him during the victory ceremony.
Mulan, Shang, Yao, Ling, and Chien-Po scale the palace wall and quickly overcome the Hun guards. Just as Shan Yu moves to strike the Emperor down, Shang attacks him and Chien-Po carries the Emperor to safety. Just as the Emperor escapes, Shan Yu overpowers Shang and soon recognizes Mulan as the soldier who caused the avalanche. Mulan lures him to the palace rooftop, where he attempts to kill her, until Mushu aims a firecracker at Shan Yu, which propels him into a tower full of fireworks and and is killed in the explosion.
He is first seen on a wanted poster (suggesting that he had committed enough poaching crimes for him to be on the run from the law). His first on-screen appearance is him approaching one of the traps he has set, only to be surprised by having caught Cody. At first, he tries to persuade him that he's not a poacher, and seems prepared to let him go, but when he realizes he knows the location of the great Golden Eagle Marahute, he admits that he is a poacher, and has already caught the father. He tosses his backpack to the crocodiles to trick the authorities into thinking Cody was eaten and kidnaps him.
At first he tries to persuade Cody to reveal the location, offering him a 50/50 deal on the sale. Although it's unknown whether he would have kept the deal, he does seem genuine. However, Cody continues to refuse his deals, and he contemplates torture, but when Joanna steals his chicken eggs, he is inspired to tell Cody that Marahute is dead, and that there's no point to keeping him, then mentions casually that her eggs will go cold without her.
McLeach falls over the waterfall to his death.
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At the film's end, as he tries to kill Cody to keep him from tattling on him about his capture of Marahute by feeding him to the crocodiles of Croc Falls, he's knocked into the river by Joanna, who was chasing Bernard. There the crocodiles then turn their attention from Cody to him, and attack him and Joanna. But at first, he seems manages to fight them off, saying "You'll think twice before messin' with Percival McLeach!". However, as it turns out, the large reptiles were trying to escape a huge waterfall, and even Joanna, who has swam to shore, has informed him of it by waving goodbye. He then discovers his fate, and tries to escape, but he is eventually swept over the falls and dies from either drowning or the impact of the fall, ending his malice for good.