U-900 (2008)

In the year 1944, with World War II still raging, the Germans are determined to send their last available submarine, the U-900, on a clandestine mission from Toulon to Warnemuende. Atze assumes the identity of the legendary Lieutenant Commander Roenberg to carry out this top-secret operation. However, as their commander starts issuing unconventional orders, the crew becomes increasingly suspicious, setting the stage for a suspenseful and dramatic tale of deception and intrigue.