Synopsis by Rob Ferrier
Each episode of Sharks of Steel takes viewers inside the world of the submarine and the submariners who serve aboard them. Used as weapons for over a hundred years, it was during the world wars that submarines first scratched the surface of their potential, acting mainly as commerce raiders. Later, when nuclear weaponry came of age, submarines became an integral part of this force. This video examines the use of the weapon during World War II. Successes of both German and U.S. submarines are chronicled, as well as developments like sonar that were intended to curb them.