Folks in Black Rock have their own way of welcoming mysterious, one-armed stranger John J. Macreedy. He's welcome to leave. Or they'll make sure he leaves in a pine box. Two-time Academy Award winner Spencer Tracy plays World War II veteran Macreedy, who keeps his own counsel about why he's come to Black Rock and who keeps his wits about him when confronted with threats and violence. Director John Sturges ramps up the tension while revealing Macreedy's mission and the town's grim secret. Robert Ryan, Walter Brennan, Ernest Borgnine and Lee Marvin are among the town's thugs and lap dogs.