Five young British men take on the challenge of a lifetime - to spend four months travelling the world, taking on some of the most deadly creatures and hostile places on the planet.

The lads' penultimate challenge is going to be one of the most deadly, as they have come to Bangladesh to learn to catch venomous snakes. Master snake king Shoporaj Dholu has just six days to train them up and keep them alive.

Dholu comes from generations of snake kings. He is a Bedey gypsy, a caste known for its snake catchers, snake charmers and snake medicine. The Brits arrive in the Bedey village of Rahmatpur at just the right time - Dholu is planning the first snake hunt of the season, for deadly cobras, and if they are good enough he has agreed that the outsiders can come along.

First, they have to prove they can catch rats and lizards, that they can handle milk snakes without getting bitten and that they can keep their head when confronted by a deadly cobra, while surviving 45 degree heat in 100 per cent humidity.

Reuben looks to be in pole position because he actually loves snakes, but Nick is still determined to retain his incredible record of passing every challenge so far. Show less