When his boss is killed, Detroit cop Axel Foley finds evidence that the murderer had ties to a California amusement park called Wonder World. Returning to sunny Beverly Hills once more, Foley reunites with Detective Billy Rosewood to solve the case. Along with Billy's new partner, Detective Jon Flint, they discover that Wonder World is being used as a front for a massive counterfeiting ring.

When plans with her boyfriend fall through, high school senior Chris Parker ends up babysitting the Anderson kids, Brad and Sara. What should be a quiet night in, however, turns into a series of ridiculous exploits, starting when they leave the house to pick up Chris' friend Brenda. Soon, Brad's buddy Daryl is involved, and the group must contend with car thieves, blues musicians and much more.

Christer is a teenager who prefers to spend his time on motorcycles instead of his studies which doesn't impress his father. There is also a youth motorcycle gang terrorising the local girls but Christer doesn't dare to stand up to them, leading to his humiliation. One day he comes into contact with a professional speedway racer who takes him under his wing.