Watch Hitler's Secret Tunnels

Seventy years after the end of World War II, hundreds of miles of tunnels built by the Nazis may still be protecting Hitler's final secrets. When explorers Mike Scott and Luke Mahoney uncover a hidden Nazi document that reveals a sealed Nazi underworld, they search these unexplored tunnel complexes that might hold the answers.

Hitler's Secret Tunnels is a 2019 documentary. It has received mostly poor reviews from critics and viewers, who have given it an IMDb score of 4.4.