Though Plankton does not directly participate in this Season 1 classic, "SB-129" set the rules for time travel in the universe. Squidward Tentacles utilizes a freezer to jump 2,000 years into the future, encountering a chrome-plated world and a multi-headed robotic SpongeBob clone (SpongeTron), before traveling to the prehistoric past. This episode established that Bikini Bottom’s timeline is malleable, cyclical, and deeply tied to the existence of SpongeBob. "Back to the Past" (Season 7)
While characters like Squidward have accidentally frozen themselves into the future and Patrick's family has a habit of tearing holes in the space-time continuum, one recurring theme ties the best of these stories together: the strange, uneasy, and occasionally heroic alliance between SpongeBob SquarePants and his archenemy, Sheldon J. Plankton. Whether they’re trying to steal a recipe or save the world from a post-apocalyptic wasteland, when these two put aside their differences to mess with history, the results are always spectacular. spongebob and plankton time travel
When the Krabby Patty formula vanishes into thin air, Bikini Bottom instantly descends into an apocalyptic, leather-clad wasteland. Accused of stealing the formula, Plankton flees with SpongeBob, who is the only citizen who believes in his innocence. To fix the present, they realize they must journey into the past to retrieve the formula before it disappeared. The Photo-Booth Time Machine Though Plankton does not directly participate in this