An ultimate endurance challenge as some of the UK's fittest men and women are pushed beyond their mental and physical limits by battle-hardened veterans from the world's toughest special forces.

An ultimate endurance challenge as some of the UK's fittest men and women are pushed beyond their mental and physical limits by battle-hardened veterans from the world's toughest special forces.

But, if you're a fan of Special Forces: World's Toughest Test, you're going to be in for a wait. When the network first announced its slate, the celebrity social experiment was scheduled to debut ...