Fanboy and Chum Chum have a burping contest. When it's Fanboy's turn a song comes out, but it turned out to be The Frosty Bus. Everyone except for the boys ran up to it. Fanboy told Chum Chum to work up a thirst. So the ran around on the play ground as fast as they could and licked a fire hydrent. Then they couldn't decided what to get and then Lenny's shift was over so he went crazy saying "PINK, BLUE, PINK, BLUE, PINK, BLUE MAKE UP YOUR MIND!!!" (since Fanboy kept saying pink, blue, pink, blue.) So Boog came and missed their cups on purpose and tied the boys into a pretzel. Next Boog goes to play Chimp Chomp. the boys put their mouths to the pipes but Boog put helium in them. Then Fanboy dresses as a cop. Chum Chum had a siren that let him sound like anything. They tricked Boog but there was a call about a seagull stealing snacks. Then they brake Chimp Chomp on purpose. They told Boog to meet them behind to Frosty Bus in a hour. When he did they tricked him with a fake Chimp Chomp. Then they crash the Frosty Bus. And the sign crushes Boog.
Fanboy and Chum Chum's new Ultra Deluxe Mega Mic toy allows them to make their own crazy sound effects in addition to auto-tuning their voices. Problems arise when Fanboy and Chum Chum abuse the Mega Mic and make Mr. Mufflin think that school's out. Things get even worse when it starts to make sounds on its own.