Dr Beaker and Professor Popkiss are invited to test drive a new atomic train. They discover the train has been sabotaged and Supercar is needed to try and save them using a new tool recently developed for the United States Army.
Dr Beaker decides to order a case of wine from France to try and add something to his poor cooking skills. When the crate arrives it contains something far more valuable than wine.
Dr Beaker along with Jimmy undertake a flight in Beaker's latest project - a balloon. Unfortunately the balloon is accidentally released from its moorings by Mitch and Supercar is launched in a desperate attempt to save them.
A new jetliner is hijacked with Dr Beaker and Jimmy on board. Rather than try to save the jetliner, Supercar is used to convince the person organizing the hijack to change their mind.
The Supercar team pick up a strange radio message that seems to indicate some one is in need of help. With little or no information the team sets out to solve the mystery.
Masterspy now rich beyond his wildest dreams decides rather than steal Supercar he will just outright purchase the car. Unfortunately for him, Dr Beaker has decided Supercar can not be purchased for any price.