Apple is challenged to a fight by a grumpy Cheesesteak after Apple yells at Lemondrop, so he and Onion go on a quest to find the source of Cheesesteak's grumpiness by using the clues for a “chain reaction”. This quest starts from the hotel, then into a room, then into a kitchen, then into the sewers, then into another room, then into Edwards School.

Song: "Classic Domino Chain Reversal Song"

Apple and Onion are banned from the premiere of their friend Hot Dog's new movie he's in: Robotot II, so they try many attempts to sneak in. Their plans involve hiding in Popcorn to get in the bathroom so they can get into the booth, using objects to fool Chicken Nugget (a police-guard), disguising themselves as dogs, and using dipping sauce.

Songs: "Sorry, Chicken Nugget" & "How's Anyone Gonna Respect Me?"