Follows the daring patrol of the U-96, one of the famed German U-boats known as the "gray wolves." The crew is graphically portrayed in a life-and-death struggle, challenging the British Navy at every turn.

Originally released as motion picture in 1981, this Director's cut, c1985. Based on the book by Lothar-Günther Buchheim. Dolby digital 5.1 or Dolby surround. "Digitally redesigned and remixed soundtrack--container. Presented in widescreen format (ca. 1:85.1) ; double-sided. "60 minutes of extra footage"--Container. Special features: The making of/behind the scenes; director's commentary.