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During a "blernsball" game, Bender gets upset about the mistreatment of robots, while Fry struggles to understand the rules of blernsball. The Planet Express crew gets a delivery request to Chapek 9, a planet ran by robots where humans are routinely killed. Bender tries to get out of it by claiming it's the robot holiday of Robannukah. He makes the delivery anyway, but he gets busted for working for humans. In order to save him, Fry and Leela dress up like robots and find Bender in a robot adult bookstore. The planet's rulers capture Fry and Leela, while Bender is ordered to kill them. The rulers eventually agree that humans are harmless, and killing them is only a way to distract the robot population from their real problems.