After watching a monster truck monster movie called "King Krush", the trucks scare themselves into believing that the movie monster is real, and is waiting for them at the school.

Engines get overheated when Meteor accuses his friends of stealing the prized racing pennant given to him by his father – only to learn that he dropped the pennant during an earlier race.

Little Tow intentionally gets his friends stuck in the muck during a game of ‘follow the leader’ so that can tow them out. However, when Little Tow finds himself stuck up to his axles in mud and needs help, his friends fear he’s playing another trick on them.

The trucks learn a valuable lesson about safety and rules when they enter a restricted area of the junkyard and Meteor is accidentally suspended over the car lot by a magnet and crane.

Thinking that Big Wheelie’s latest time-trial race is way too hard for a little monster truck like him, Amby fakes sick by pretending to overheat his engine in order to avoid it.

When Meteor gets stuck in an extra-deep mud puddle and Junkboy thinks it’s his fault – he withdraws, leaving Meteor feeling hurt. It’s only when Junkboy finally admits what he did that he learns he’s not to blame after all.