Jeep (introduction, origin); Peep (introduction, origin); Eugene the Jeep; unnamed Army Colonel (introduction, cameo); unnamed Army Sergeant (introduction, cameo); unnamed City Mayor (introduction, cameo); Dr. Van Duyvil (villain, scientist, introduction); Duyvil's assistants (villains, introduction for both)
Jeep, recently discharged hero of the Battle of France, is tinkering in his garage with his old Army jeep given to him in lieu of his discharge pay. Adding a rocket attachment he developed while in the Army to the jeep, it can now fly, so he and Peep, now costumed, take a spin around town. They spot weird animated trees breaking into banks and picking people's pockets, and then spot a plane with a weird scientist inside who has developed a chlorophyll atomic animator that has brought the trees to life to rob the town. Jeep secures the Army's Electronic De-Atomizer to stop the scientist.