Watch Secrets of the Dead Season 9 Episode 6 Online

The Battle of Stalingrad, the deadliest single battle ever seen, has been lauded as a shining example of Stalin's military genius, and altered the course of World War II permanently. The battle established the Soviet Union as a superpower to be reckoned with in the long Cold War that lay ahead. More than a half-century later, with newly uncovered evidence the full impact of this horrific battle is revealed.