An ex-cop gets pulled back in an undercover mission for the FBI by his former partner. The mission is to catch drug runners, but it is also sting operation against dirty cops, some of whom set up the ex-cops' dismissal from the force.

Bud and Doyle are two losers who are doing nothing with their lives. Both of their girlfriends are actively involved in saving the environment, but the two friends couldn't care less about saving the Earth. One day, when a group of scientists begin a mission to live inside a "Bio-Dome" for a year without outside contact, Bud and Doyle mistakenly become part of the project themselves.