Fry and Leela disguise themselves as robots to find Bender after he fails to return from a delivery to a robot planet, only to learn that he has become a celebrity in a culture which fears humans.
Bender joins a robot church after fighting an addiction to electricity, but reverts to his pre-addictive behavior of cigars, booze and robot hookers, leading to a musical confrontation with the Robot Devil.
Fry matriculates at Mars University and competes with a monkey made smart by Prof. Farnsworth's latest invention while Bender tries to make the local chapter of his robot fraternity cool.
Bender flushes Nibbler down the toilet in a fit of jealousy, which prompts Professor Farnsworth to implant in him a chip that will allow him to feel empathy.