Twelve-year-old Carly has recently recovered from an illness and to celebrate, Carly, her older brother, Ajay, and her dad go on a climbing trip in the Rocky Mountains. Even though Carly tries to convince her family she is a hundred-percent better, her troubling bouts of tiredness give her away. When an unexpected injury forces Carly and Ajay back down the mountain, Carly's health is put to the ultimate test.