A strong and exceedingly well played and directed sea drama [from the story Tuna by Houston Branch]. After losing his hand to a tiger shark in a realistic underwater shot, Edward G. Robinson, as Capt Mike Mascarenhas, replaces the lost member with a steel hook. The shady lady who marries him bears no love, but only appreciation for his kindness.
It’s to be expected that she should fall for the personable best friend of her husband (Richard Arlen). From friendship, the captain’s feelings toward his first mate turn to hatred when the boy and the missus are caught in a clinch.
No human villains in the cast. All the dirty work is assigned to the sharks. When they’re not biting off the captain’s hand they’re chewing up luckless fishermen who fall into the water.
The tuna fishing moments are the big thrills. One big scene shows a haul of countless tunas by hook and line. Sharks enter the picture with each fishing sequence, and disaster to one of the crew always follows.