Dennis & Gnasher Unleashed!

The Hamazing Hamsterman (1x9)

Air date: Nov 16, 2017

Dennis gets into a fluffy mess when he runs into Von Screwtop's hadron collider with the professor's pet hamster, Galahad. To stop Dennis from completely changing into a hamster, the gang must sneak him into Wilbur's lab to use his reverse hadron collider and change him back!