![](https://image.tmdb.org/t/p/original/3oNhr7wPp2gViE4DXfkwQhQx8RQ.jpg)
![](https://image.tmdb.org/t/p/w200/c4lraNetAimkMSde8x91wCB13l4.jpg)
A dying elderly scientist proposes love-sick Jonas a cure that will improve the youngster's physical skills and general sex-appeal. What the scientist really aims to accomplish is a body switch: he wants to survive in a young man's body and gladly leaves Jonas to wake up in his own wasted frame. Jonas must somehow signal his predicament to his friends. Both men rev up for a survival-of-the-fittest chase.