What was the ';House'; episode where kutner left?

what season was it? what episode number was it? and what was the episode called?What was the ';House'; episode where kutner left?
It is called ';simple explanation, season 5, episode 20, and here is a good place to watch it for free, no viruses, and you don't have to pay.





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http://www.fox.com/house/What was the ';House'; episode where kutner left?
';Simple Explanation'; :It's playing on Hulu. Episode 20 season 5
Simple Explanation.
Simple Explanation try watching it on surfthechannel.com