After a freak accident with Tari's arm while she was playing Roblox, Mario is sent into the game where he meets Oofio, and goes on a mission to acquire Robux and become an Administrator.
Mario, SMG4 and Meggy face off against Lawyer Kong in an attempt to keep the SMG4 channel alive along with their friends. The Mario Cast has to go against the SMG4 Cast to see who will win in plenty of fan-made wacky and silly challenges.