If you've ever wondered whose military special forces are the toughest, which mountain is the most unforgiving to climb or who is the most fearless bank robber ever, then That's Tough is a show you won't want to miss. Taking viewers around the globe, each episode of the new series will count down the top three "toughest" in a broad spectrum of categories, ranging from dangerous prisons to crack sniper units to deadliest blades to top secret mega vaults.