Mission Impossible, Season4, Episode 8 from the 1960's.

[seaman hornsby]

Available on Amazon(and probably other sources like DVD's), titled, "submarine". Pretty cool U-Boat flick. Lots of suspense and very entertaining. As always, I.M.F. pulls off the Impossible.
Check it out, I think you'll like it. MISSION IMPOSSIBLE SEASON 4, EPISODE 8.
Seaman Hornsby.