U-505 was the first enemy warship the US Navy captured at sea since 1812. This is a new account of how Captain Gallery planned and executed the raid on his own initiative, and how his success almost endangered the war against the U-boats.

On June 4, 1944 a US Navy antisubmarine task group in the Atlantic captured an enemy U-boat on the high seas. It was not the first time the Allies had taken a German U-boat as a prize, but the capture of U-505 was different. Captain Gallery and his Task Group 22.3 devised a risky plan to capture scuttled U-boats.