DISCOVERY CHANNEL

Bear Grylls is dropped on an ice cap covering an active volcano. In blizzard conditions, he struggles to make headway with the barren landscape offering little food.

Ed takes on Hollywood stuntwoman Ky Furneaux in the Four Girls Mountain Range. They must survive in its icy valleys and snow-covered peaks.

Host Rannvijay Singha interacts with experts and embarks on adventurous expeditions to unravel India's lesser-known mysteries, legends and secret hidden treasures.

Bear navigates Ireland's rugged terrain where he scales 2000ft cliffs, builds fires and forages for food, plus he feasts on the carcass of a dead sheep.

When Mykel and Ruth wander far off the beaten path in the Smoky Mountains, their survival depends on eluding hungry black bears and a host of hidden hazards lurking in the forest.