Where are planktons missing robot parts in spongebob the yellow avenger?

In the episode "The Yellow Avenger," Plankton isn't missing robot parts. He is missing the formula for Krabby Patties. He wants to steal the formula to finally defeat the Krusty Krab and win the hearts and stomachs of Bikini Bottom.

While the episode involves a lot of action and robot-like features from Plankton's "Planktonium" suit, he isn't specifically trying to find missing robot parts.