The race is well underway with four celebrities taking on the challenge of a breathtaking 10,000km journey from Africa to the Arctic.Having left behind their luxurious lifestyles and all the trappings of modern-day life, the celebrities are now more focused than ever on reaching the finish line in Tromsø. Budgets are dwindling and the intensity of the race is stepping up as the teams leave western Europe behind.Through the eyes of their loved ones, viewers will gain a unique insight into some of their favourite celebrities and their personal relationships. As the pace, scale and unpredictability of the race continues, the final rush to the checkpoint in Sarajevo takes an unexpected turn...