Bender goes into witness relocation after testifying against the robot mafia.
While making a delivery to the Donbot's mansion during a wedding, Bender sneaks onto the mansion grounds to take part in the festivities. He secretly makes out with the Donbot's daughter Bella when he witnesses the Robot Mafia viciously beating Calculon. Being the only witness of the attack, but fearing repercussions from the Robot Mafia, Bender tries to disguise himself while testifying against the Donbot in open court. However, he is recognized by Bella, while Calculon is threatened by the Robot Mafia into testifying in favor of the Donbot's innocence.
Now targeted by the Robot Mafia for ratting out the Donbot and his affair with Bella, Bender is forced to go into witness relocation, leaving Planet Express to begin hiring for his replacement. Determined to hunt down Bender, the Donbot sends Robot Mafia member Clamps to apply for Planet Express under his real name, Francis, in order to befriend Fry and make him reveal Bender's location. However, he is unsuccessful and earns the resentment of Zoidberg, who fears that Clamps's masterful use of his clamp-like hands will overshadow the use of his own pincers, the only part of Zoidberg's job that makes him feel appreciated.
The Planet Express crew makes a delivery to the moon where they find a robot they believe to be Bender, who claims his name is Billy West and does not seem to remember any of them, his memory seemingly erased as part of the witness relocation program. This does not stop Clamps from attempting to kill "Billy," but he is stopped by Zoidberg, who uses his pincers to cut off his clamps. However, Bella arrives and shoots "Billy" to death, accusing him of cheating on her since he is married to the Crushinator. The crew returns to Earth to mourn Bender's apparent death at a pizzeria near the Planet Express building. There they find Bender working as a waiter, revealing himself to still be under witness protection there, and realize that Billy was a different, innocent robot. With the Robot Mafia believing Bender to be dead, Bender is freed from witness protection.
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When Zoidberg and Clamps fight on the moon, it's a bit like in the episode Why Must I Be A Crustacean In Love? when Zoidberg challenges Fry to Claw-Plach, then cuts off his arm. Clamps uses the same speech as Fry after he finds out his clamps are missing, which is "You [bleep!] I'll kill you, you [bleep!]" only it is bleeped out.