Hostile Guns

US Marshal Gid McCool leads a wagon train of convicted felons to Huntsville prison. The only female among the crooks is the dancehall girl Laura Mannon, McCool's former flame. When McCool cannot be swayed from completing his lawful duty, Laura tries to endear herself to shotgun rider Mike Reno in the hopes he will set her free. The party is then shadowed by some outlaws led by Aaron, the brother of a convicted murderer.