Leonard Mountain Chief

A deadly virus threatens to wipe out an entire Rocky Mountain town, leaving the town doctor to find some way to escape the soldiers who enforce the town's quarantine and devise an antidote. Matters take a more deadly turn after the physician is captured by a dangerously unstable band of militia extremists.

During the Korean War, the lieutenant in charge of a Marine rifle platoon is killed in battle. Before he dies, he places the platoon's sergeant, who's black, in charge. The sergeant figures on having trouble with two men in his platoon: a private who has much more combat experience than he does, and a racist Southerner who doesn't like blacks in the first place and has no intention of taking orders from one.