Convoy

Citizen Band radio takes to the freeways for fast-lane thrills and fly-over spills. Trucker "Rubber Duck" (Kris Kristofferson) signals the big 10-4 when he and his unsuspecting ridealong (Ali MacGraw) are chased through three states by a corrupt traffic cop named "Dirty Lyle" (Ernest Borgnine). (official distributor synopsis)