Mike Donnelly is driving an advertisement truck to support his brother Al Donnelly's campaign for Governor of Washington. His competition is incumbent Evelyn Tracy. Mike is chased by dogs while driving the truck and crashes into a local movie theatre. Al's campaign manager, Roger Kovary, advises Al to get rid of Mike, but Al decides to have Mike campaign for him in town with the assistance of campaign aide Steve Dodds, who accepts the job in return for a spot on Al's staff following the election. As Steve goes to pick up Mike, he hits crazed Vietnam veteran Sgt. Drake Sabitch, who ends up stealing his rental car.