World’s best survival expert, Bear Grylls and Bollywood heartthrob Ranveer Singh plunge into ‘The Ultimate arena of wilderness’ that they need to conquer in India’s first ever interactive adventure special. This will take them to the world's most hostile and challenging terrain Serbia infamous for its wildfires, wetlands, water canyons, monster waterfall and labyrinth of caves making it, the most dangerous terrain to survive. While braving the wild they face challenges that will push them to the limits of human survival.