RB-001 20 Fathoms under the Sea

Bill and the boys go deep sea fishing with old salvage man Ben Benson. Ben's son died in a diving accident during a salvage job, and Ben has never forgiven himself for it. An old navy sub gets stuck on the bottom not far from Ben's ship. Navy rescue ships can't arrive in time to save the crew. Ben can help but won't. Will 20 sailors die needlessly in 20 fathoms of the sea?