Season 3, Episode 2 : Welcome to the Chum Bucket

Mr. Krabs and Plankton play cards. Mr. Krabs is confident, ("I've been taking him to the cleaners every day for fifteen years! I never lose!") so he bets Spongebob's contract and loses. Mr. Krabs has to give SpongeBob to Plankton. SpongeBob doesn't feel normal at The Chum Bucket so Plankton tries to appeal to him to feel normal and make a Krabby Patty. Eventually, Plankton takes Spongebob's brain out and puts it into a robot, but even that doesn't work. In frustration, Plankton gives SpongeBob back to Mr. Krabs, and he gets his job back.

WMV : http://www.ziddu.com/download/9235329/S3E02A-WelcomeToTheChumBucket.wmv.html
MP4 : http://www.ziddu.com/download/10707707/S3E02A-WelcomeToTheChumBucket.mp4.html