Lt. Cmdr. Armstrong
Stoker Snipe
Lt. Manson
ERA Marks
Cmdr. Gates
Sub-Lt. Oakley
Sub-Lt. J. McFee
CPO Barlow
Leading Seaman Brough
Leading Seaman Andrews
Leading Seaman Kelly
Capt. Fenton
Capt. Jenner
The crew of a submarine is trapped on the sea floor when it sinks. How can they be rescued before they run out of air?