Alvin and the Chipmunks Meet the Wolfman

Alvin is pulled from the lead role after he causes an experimental accident during rehearsal at the school auditorium, which alarms the staff. Additionally, Dave receives a call from Miss Miller about the Chipettes being frightened by a mysterious presence during a walk with the Chipmunks. These incidents lead Dave and Principal Milliken to decide that Alvin should be removed from the Mr. Hyde role to reduce his stress and focus on his well-being.

The accident occurs during rehearsal, directly linking Alvin's fear of the Wolfman to his declining performance.

Theodore is bitten by what he believes to be a large dog while walking home after meeting his crush Eleanor. In reality, the creature that bites him is Lawrence Talbot, their neighbor, who transforms into a werewolf during full moon nights. This bite transmits the curse of lycanthropy to Theodore.

Theodore encounters Talbot earlier as their mysterious neighbor, establishing the connection to the werewolf.

After being bitten by Talbot, Theodore begins experiencing the effects of lycanthropy. At night he transforms into a dangerous werewolf, but during the day his personality shifts to a rude, sarcastic, puppy-like demeanor. This dual behavior pattern is part of the curse's manifestation, affecting both his nighttime transformations and daytime personality.

The transformation begins subtly after the bite, with Theodore exhibiting uncharacteristic behavior.

The eccentric psychic Madame Raya foresees that Theodore will become a savage werewolf by the next full moon unless action is taken quickly. She warns Alvin and Simon that their brother will transform into a dangerous creature and urges them to act before the full moon arrives.

The psychic's prediction adds urgency to the brothers' quest to find a cure before Theodore's transformation becomes permanent.

Alvin steals Talbot's cane, which has a silver wolf head, hoping to use it to knock Theodore unconscious and prevent his transformation. However, when Alvin accidentally strikes Theodore with the cane, it splits in two, and the silver weapon fails to break the curse. The cure attempt fails because the curse requires a different method to be reversed.

The cane was originally crafted from silver bullets that killed Talbot's grandfather, hinting at its historical significance but limited curing power.

During the final confrontation on the school stage, Theodore bites Talbot while both are in werewolf form. Simon explains to everyone that this bite effectively reverses the curse for both werewolves. The mechanism appears to be that transferring the curse from one werewolf to another through a bite cancels out the lycanthropy for both parties, essentially curing them both.

The curse was originally transmitted through Talbot's bite to Theodore, so the reverse action of biting breaks the cycle.

During the chase scene, Theodore fully transforms into a dangerous werewolf and pursues Eleanor. The crystal necklace that Theodore gave her earlier shines in the moonlight, triggering a memory of his true feelings for her. This emotional reminder causes him to flee from attacking her, showing that his love for Eleanor is strong enough to temporarily override the curse's violence.

Theodore gives Eleanor the necklace earlier, establishing its emotional significance before the full moon.

At the wrap party, Talbot thanks Theodore for freeing him from the family curse and announces his intention to succeed Principal Milliken as the new school principal. Principal Milliken then steps into a less stressful role, planning to ride on rickry bridges in South America. Talbot's transformation from mysterious neighbor to principal represents his integration into the community after being freed from his curse.

The resolution of the curse allows Talbot to take on a positive, constructive role in the community.

After Alvin is pulled from his lead role as Mr. Hyde due to his nightmares and the auditorium accident, Theodore steps in as the new Mr. Hyde to help restore Alvin's confidence. Alvin is then reassigned to the butler role in the production, which is a smaller part but still allows him to participate in the play.

Alvin's monster collection being confiscated by Dave signals his reduced involvement in the play.

When Dave tries to apologize to Talbot to ease the escalating danger, Talbot reveals that his cane was forged from silver bullets that killed his grandfather. As the full moon rises, Talbot begins transforming into a werewolf. Dave tries to intervene but is knocked unconscious after colliding with a pole while running toward the school to warn the students.

The silver cane connects Talbot's family history to the werewolf curse, explaining his transformation trigger.