In Series 2, Episode 3, a most wretched enemy returns, as Professor Mysterious and Nefarious Tim come face to face in their long-awaited showdown.

In Series 2, Episode 2, the Professor is forced to make an unexpected alliance as he joins the chase for a valuable treasure.

In Series 2, Episode 1, Professor Mysterious seeks to reunite with his closest ally, only to find him tangled in the claws of a dastardly Shaman. 

In Series 1, Episode 3, the Professor is confronted with a face he thought he'd never see again, and must make a treacherous journey to the capital.   

In Series 1, Episode 2, the Professor and the Sergeant discover that the Clones have been plotting their most villainous move yet.

In Series 1, Episode 1, Professor Mysterious assists his dear friend Sergeant Briggins, when a strange box arrives at his door.