Bender, annoyed with all the attention that Nibbler is getting, bakes an elaborate, five-tiered cake for Nibbler's birthday. But before anyone can admire it, Nibbler eats it in one gulp. Infuriated, Bender flushes Nibbler! To make Bender appreciate Leela's heartache, Professor Farnsworth installs an empathy chip in the robot. As a result, Bender feels all of Leela's emotions. Overcome by sadness, Bender sets out on a mission to find Nibbler and save him from the dangerous depths of the sewers and the mutants inhabiting them. In order to rescue Nibbler, they must battle El Chupanibré--the gruesome, seven-foot-tall sewer creature. But Bender has a hard time being brave when all he feels is Leela's fear!

Voice Cast: Billy West as Fry, Professor Farnsworth and Dr. Zoidberg; Katey Sagal as Leela; John DiMaggio as Bender; Phil LaMarr as Hermes; Lauren Tom as Amy; Tress McNeille as Mutant Vyolet.

Special voice cast: Maurice LaMarche as Calculon and Mutant Raoul; Dave Herman as Mutant Dwayne.

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