The Dark Wizard - S6.E9

Top secret scientific components are being stolen by a thief dressed as a character from a best-selling series of fantasy novels. The team go undercover at a fantasy convention only to discover the threat is far greater than they'd anticipated. Someone is plotting planet-wide destruction in order to make the post-apocalyptic world of the books a reality. Dan must put his faith in the power of imagination to defeat the evil Dark Wizard.