Bear Grylls enlists Academy Award-winning actress Julia Roberts for a special adventure to deliver life-saving vaccines to a remote village before the vaccines expire. After a long journey to Kenya, Roberts visits with patients and medical staff at Wamba Hospital and is given life-saving cold-chain vaccines that must be kept cold on the trip ahead. She and Bear board a bush plane for the first leg of the trip, but a remote and dusty landing strip means they must jump from the moving plane before it takes off again. Forging ahead, the pair navigate through dense underbrush, cross a river full of hungry crocodiles and hippos, and stay awake through the night to monitor their precious cargo and deliver it safely to the Samburu community awaiting their arrival. The journey highlights the impact of live-saving vaccines, which Red Nose Day helps to provide to children around the world.