During the final days of WWII, chaos ruled. The German submarine U-461 went down along with its entire crew just off the coast of Denmark. U-461 however, was no ordinary submarine. 50 years after the war ended, two brothers go scuba diving for fun and discover that their every move is being watched and that some things should just be left alone.

Kasper, 14, plays soccer with his friend Jon, the goalkeeper. Jon loses the ball and causes the team to lose. The captain and the other team members demand a new goalkeeper. Kasper is unsure what is most important: friendship or winning?