A bus full of horny gay men troll the streets, on the prowl for straight men to use for their pleasure. They spot two unsuspecting straight men, invite them aboard, and with the promise of a hefty sum, strip them naked. The straight men, now vulnerable and exposed, are made to service the gay men, sucking their cocks and getting fucked in return. The bus becomes a moving orgy, with the straight men getting used and discarded at each stop.