The Summit | 9pm | CBS

Series premiere: Sixteen ordinary Americans embark on a once-in-a-lifetime journey through the treacherous New Zealand Alps in an attempt to reach the peak of a towering mountain in just 14 days in order to keep their share of the $1 million prize they’re carrying in their backpacks. After a medical emergency occurs just hours into the trek and the climbers face a perilous obstacle crossing a ravine, fears rise as the Mountain’s Keeper, who is tracking them along their journey, forces the group to make their first brutal moral decision.