Christmas break, 1971. Samantha and Clara, two students who are staying behind for the holidays at their boarding school, must survive the night after the arrival of uninvited visitors.

Nine strangers are brought together to summit a 20,000-foot mountain in the Peruvian Andes. With each step, these novice climbers will push themselves to their limits and beyond.

In the Olympic Athlete Village, a young cross-country skier bonds with a volunteer dentist after her competition ends.