In yet another scientific misadventure, Scientist #1 and Pete enlarge Dag to an enormous size so they can drive their plush custom van around inside him and learn the secrets of the pointy weasel thingys. It's up to Norb to stop them and return his brother to normal In this truck drivers tale, Norbert and Daggett become embroiled in a race to the Largest Pile of Toenails Attraction with none other than Truckee and his Big Renee.