Graverobbers take a necklace from an Indian burial ground, unleashing a fire-breathing dragon that goes on a rampage through Chicago. Unfortunately, the only one at SU2 who has ever successfully fought and killed a dragon is... Carl.

A Link with mind control powers sets off a crime spree using children as the perps. When Nick and Kate's investigation leads them to a really annoying kids show host, they send a bitterly reluctant Carl undercover as the host's sidekick to discover - and destroy - the Link's power.