Jimmy Neutron is trying to make contact with an alien civilization. Unbeknownst to him, a satellite he launches (okay, it's the kitchen toaster, but it works!) is picked up by an alien species. In the dark of night the aliens fly their war ships-looking like a fleet of rubber chickens to earth and abduct all the parents in Jimmy's hometown of Retroville. So it's up to Jimmy to create a fleet of space ships from the rides at the town's new amusement...