name that South Park episode

[34TheTruth34]

I saw part of a South Park episode that I wanted to rewatch, but I can't remember the name of it or the season it was from. It's the one where Cartman gets tired of his friends b/c they're too immature for him and he goes online and meets a bunch of perverts trying to molest him. Who can tell me what season it's from or which episode it is? No prize except pride boys, sorry. Thanks in advance.