Handed a flyer for a carnival, perennial trickster and goof-off Steve Harmon dresses as a clown in order to ambush his rival Don Winston with a pie to the face. Lying in wait, he witnesses Don and Heather's abduction by evil clowns. He follows them into the house of mirrors, where a dimensional portal is activated. Steve plunges after them, and into the world of Dimension X! Steve is granted strange powers by a transporter accident. He learns to control them with the help of the supreme scientist of dimension x, who sets him on the path to save his friends and take down the evil overlord. Arriving back on Earth, he tells the story to his friend Mike who remarks, "Sounds to me like you just had an Origin". He takes the name Slapstick, and resolves to play cruel tricks on crime!