SpongeBob has lost his name tag! He has no idea where it has gone. He retraces all of his steps, with "help" from Patrick to no avail. His mind and day rapidly deteriorating, he continues to search desperately for his identification. / It is the 25th anniversary of Plankton's first attempt to steal the Krabby Patty Secret Formula. The entire Krusty Krab crew is on its guard, and foils Plankton at every turn. Plankton, defeated, decides to enlist the help of all of his plankton relatives - all millions of them.