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.

Sue Ellen Crandell is a teenager eagerly awaiting her mother's summer-long absence. While the babysitter looks after her rambunctious younger siblings, Sue Ellen can party and have fun. But then the babysitter abruptly dies, leaving the Crandells short on cash. Sue Ellen finds a sweet job in fashion by lying about her age and experience on her résumé. But, while her siblings run wild, she discovers the downside of adulthood