The third season completes a new series of events, as there is a new Meatwad game that allows him to communicate with the dead at any time. In a short while, Shake invites more people, especially Frylock, to the hallway, where things look fine by setting a rope, so he can die and get into the dangerous Meatwad game.
I wouldn't recommend this set as a blind buy for those who've never seen an episode, but existing fans will be in heaven. The quality of the program rarely dips, and with three hours of programming, it's ideal viewing for those lazy afternoons.