Jon Baker (Dax Shepard) and Frank 'Ponch' Poncherello (Michael Pena) have just joined the California Highway Patrol (CHiP) in Los Angeles but for very different reasons. Baker is a beaten up pro motor-biker trying to put his life and marriage back together.

Poncherello is a cocky undercover Federal agent investigating a multi-million dollar heist that may be an inside job-inside the CHiP. The inexperienced rookie and hardened pro are teamed together, but clash more than click, so kick-starting a partnership is easier said than done. But with Baker's bike skills combined with Ponch's street savvy it might just work, if they don't drive each other crazy along the way.