Plankton: The Movie is a 2025 American animated musical comedy film based on the television series SpongeBob SquarePants, created by Stephen Hillenburg. It is directed by Dave Needham and written by Kaz, Chris Viscardi, and Mr. Lawrence, based on a story by Lawrence. It stars Lawrence, the voice of Plankton, alongside the rest of the series' regular cast. The story follows Plankton, whose plans for world domination are put to a halt when his computer wife, Karen, decides to take charge. It is the second in a series of SpongeBob character spin-off films for Netflix, following Saving Bikini Bottom: The Sandy Cheeks Movie in 2024.

Plot

Plankton unsuccessfully attempts yet again to steal the Krabby Patty secret formula. When he returns home to the Chum Bucket, he is surprised that his computer wife Karen has turned the restaurant into a successful Mexican-themed chum restaurant with an active customer base. Frustrated that her decisions does not fit his exact specifications of evil, he burns the place down. Fed up with Plankton never listening to her ideas, Karen removes her Empathy chip from her circuitry, transforms into a larger mech form, and magnetizes the Chum Bucket so that she could build a giant floating fortress and take over the world without him.