At Gunpoint

At Gunpoint is an American 1955 Western film directed by Alfred L. Werker and starring Fred MacMurray, Dorothy Malone and Walter Brennan.

MacKay is having his usual chess game with Doc Lacy at the general store Jack Wright runs with wife Martha and brotherinlaw Wally. A gunshot from the bank startles all. Bob has shot a teller, then guns down the old marshal when he arrives. Jack is just a meek storekeeper, but he manages to grab a gun and wing the fleeing Alvin Dennis, who is then killed by another townsman, George Henderson. And the banks loot is saved.Everybody, particularly banker Livingston, appreciates the bravery of the town heroes. But when the Amarillo newspaper publishes their photographs, Bob Dennis decides to return to Plainview to avenge his brothers death. A tipsy Henderson is ambushed as soon as he gets back to his ranch. ........

Source: Wikipedia