Incident at Phantom Hill

Incident at Phantom Hill is a 1966 American western film produced by Harry Tatelman and directed by Earl Bellamy. It stars Robert Fuller, Jocelyn Lane and Dan Duryea.

At the end of the U.S. Civil War, some Southern rebels steal a Union shipment of gold and bury it in a cave outside of Phantom Hill, Texas. After they are captured by Union forces, their leader secretly makes a deal with his captors and reveals the golds location in return for his release.The Union soldiers renege on the deal and keep his as their capture as they set out to find the gold. They survive an ambush by Apaches. The rebel outlaw gets the two soldiers who are guarding him drunk, kills them, and escapes taking all the Union soldiers weapons with him. He locates the gold and falls in love with the Union leaders girlfriend. Meanwhile the weaponless Union soldiers face Apaches again and only the Union leader and one other escape alive. The set off in pursuit of the rebel and set on him and the girl. She betrays the rebel by tossing his gun to her Union lovge, who shoots the rebel. The lovers are reunited and the Union soldiers return the gold to the government. ........

Source: Wikipedia