Directed by Paul Schneider, it stars Steven Eckholdt as Danny,[2] a 14-year-old boy who is infatuated with his teacher Miss Peggy Noble (Daphne Ashbrook).

Given the fact that she is engaged to the cold-tempered and vicious gym teacher, Roy Kelton, who is nicknamed Jackjaw for his constant threat of breaking his pupils' jaws, Danny goes through his school days somewhat uninspired and suffers in silence.

One day, he oversees his geeky friend Lloyd Duffy, an orphan who happens to live next door with his uncaring uncle Herb and ditsy aunt May, growing fruits with an experimental growth accelerator.

Danny becomes obsessed with the idea of turning himself into a grown man with the same machine, in order to break up Miss Noble's engagement, as well as convincing her to give him a chance.

Lloyd is reluctant to help him out, aware of everything that could go wrong, so Danny secretly breaks into his lab and uses his machine that very night, seeing that the timing was perfect, considering that his parents will be leaving the house for a week.

Playing along with their misconception, Danny not only impresses his assistant Louisa Horton with the introduction of his new rules - which include having as much fun as possible - but also Peggy, who admires his youthful approach of life.