In the town of Toonville, where all manner of toons dwell, the superstore of ToonMart is where they all do their shopping. ToonMart's mascot is Marty (Thomas Middleditch), a cheerful and energetic boy who sprung to life from a ToonMart billboard after it was struck by lightning. When not working at ToonMart under the supervision of its owner, an old mole named Jack (Sam Elliott), Marty hangs out with his two best friends, Burnie (Curtis Armstrong) the dimwitted sidekick and son of the local supervillain Burnatron, and Holly (Jenny Slate) the Fembot (both of whom utterly loathe each other). But no matter what he's doing, Marty makes nonstop zaniness out every adventure and plays around with every classic cartoon trope in the book.
