The bloody assault by Allied forces on the beaches of Anzio, Italy, and their four-month march into Rome is detailed in a joint American, Italian and Spanish production filmed largely in Naples, Italy. Robert Mitchum stars as International Press correspondent Dick Ennis, who joins the command of Maj. Gen. Jack Lesley (Arthur Kennedy). Director Edward Dmytryk (The Caine Mutiny, The Young Lions) delivers another tough story of men in combat.