Mad scientist Boris Balinkoff returns to the island with a plan to use mind control rings to turn the castaways into his own army of hypnotized robots, with the goal of using them to rob the gold depository at Fort Knox. Although Gilligan is his primary test subject, the ring gets passed around to Mrs. Howell, The Skipper, and Ginger as well. Convinced that his rings can work on anyone, Boris has the entranced Gilligan give everyone a ring and orders them to stage a mock robbery of Fort Knox.

Ginger and Mary Ann were sitting in Mary Ann’s hut, discussing the strange things that have been going on today

Ginger: It's really strange. Gilligan was very upset at me today, he said I destroyed the boat he was trying to build. But, I swear I never did. I was in my hut the whole afternoon.

Mary Ann: Yeah, Gilligan swears I ripped apart the vines that secured his boat. But I kid you not, I swear I was at the shore of the island relaxing under a coconut tree.

The two thought about how strange it was before they both felt a slight jolt from their rings that Gilligan had given to them in the morning

Ginger & Mary Ann: I hear and I obey. They both say as they stood up and exited the hut, walking to the cave where Boris was currently residing