Bullet Code is a 1940 American Western film directed by David Howard and starring George O'Brien, Virginia Vale and Slim Whitaker. The screenplay was written by Doris Schroeder from a story by Bennett Cohen.

Plot

In the Old West, cowhand Bud Matthews, who works for rancher Steve Holden, is in cahoots with Cass Barton and his gang to rustle Holden's cattle. Matthews has a change of heart and tries to warn Holden and his cowhands of the ambush, but is shot during the melee. Steve thinks he shot Bud accidentally. Before he dies, Bud confesses his past to Steve and also the location of his family's ranch. Steve and his pal, Pop Norton, head toward the Matthews' ranch and meet John Matthews and his daughter, Molly. Banker Sam Gorman wants to buy out Matthews because the Matthews land is the only stretch along the Mexican border that is not regularly patrolled by the authorities (allowing for more frequent cattle rustling). Gorman has hired men to threaten Matthews' cowhands, causing them to quit. Hired as cowhands by the Matthews, Steve and Pop are invited to their ranch for dinner, but subdue a couple of Gorman's men attempting to ambush them along the way.