AllMovie

Hobart Bosworth was known for his roles as seamen; in this picture he does it up a bit differently by playing a deep sea diver. When Martin Flint (Bosworth) helps save a broken down submarine, the publicity attracts a pair of schemers. James Arnold (George Webb) approaches Flint with a crooked enterprise involving supposedly sunken treasure. Flint doesn't fall for this, but his son and partner Luther (Lloyd Hughes) falls for Edna Gordon (Grace Darmond), the girl accompanying Arnold. She tricks him into marrying her, then takes off, leaving him distraught. Flint obligingly tries to bring Edna back to his son, but the steamer carrying her and Arnold sinks. Luther refuses to believe his father's contention that his wife was no good until he takes a dive through the ship's ruins. There he finds Edna's body, entwined in the arms of Arnold, who perished with her.