2. Mountains

The engineers are confident they can overcome both the harsh environment and the engineering challenges, but as the climate takes its toll, physically and mentally, the reality of what they've facing starts to bite.

3. Jungle

Deep in the heart of a remote jungle, ex-special forces soldier Ant Middleton and five expert engineers are stranded in a simulated crash site where a flash flood has caused vehicles to fall into a crocodile-infested river. The engineers, three women…

4. Desert Island

Five highly skilled engineers are abandoned on a desert island. The ground conditions are extreme as five abandoned engineers seek to build an escape craft out of ship wreckage.

5. Arctic

A team of expert engineers are abandoned in Arctic conditions in a simulated crash site, with the leftovers of a light aircraft and two snow mobiles. Their only chance of escape is to create a vehicle from the wreckage. Ex-Special Forces soldier and survival expert Ant Middleton oversees the team of three men and two women, who each bring a specific skill to the team - from aircraft mechanics to vehicle engineering. But as the freezing conditions close in, debilitating the group, the engineers are unable to agree on what to construct, and increasingly escape looks unlikely.