When Steve Urkel enlists the help of the gang to track down the Urkel-Bot, they stumble onto a deeper mystery with the appearance of a Technomancer who controls all the robots.

Driving through the Rocky Mountains, the Mystery Inc. gang discovers a stowaway in the form of "Weird Al" Yankovic. He warns them about a horrible Allosaurus raining relentless destruction on a local accordion sleep away camp.