A group of friends embark on a camping trip for a ten-year high school reunion. Their celebration soon turns into a battle for survival when they realize that the locals, who are not what they seem, are hunting them down.

The only U.S. Marshal assigned to Antarctica, Carrie Stetko will soon leave the harsh environment behind for good – in three days, the sun will set and the Amundsen-Scott Research Station will shut down for the long winter. When a body is discovered out on the open ice, Carrie’s investigation into the continent’s first homicide plunges her deep into a mystery that may cost her her own life.