Bear Grylls: Survival School

The kids face a tough first challenge, to make their own shelter in the forest.

The young survivors get a crash course on the basics.

The young survivors get their first taste of emergency survival food.

Bear shows the young survivors how to use their urine to heat up food.

The survivors attempt to climb a mountain in bad weather.

The group faces a scary descent down a 110-foot cliff.

The young survivors have a day out at the seaside, but it is no holiday.

Bear demonstrates the tricky technique of commando crawling along a rope.

The team take on treacherous raging rapids, before spending the night in a cave.

With the final expedition looming, it is the last day of competition between the girls and boys.

The kids are airlifted by helicopter into the Welsh mountains for a gruelling final exercise.

The kids have been airlifted by helicopter into the Welsh mountains.