Twenty terrorists, five hundred vacationing skiers and one ski patrol officer... this mountain is about to explode! It's the biggest ski vacation weekend of the year and ski patrol officer Matt Foster is about to have a very bad day. The night before, a plane carrying stolen nuclear materials crashed into Kilington Mountain. Terrorists send a team of professionals to retrieve the cargo from the crash site. They are well armed and operate with military precision. But Matt has one thing going for him... he knows the mountain like the back of his hand.