Off the northeast coast of Russia, the captain and crew of a small crabbing vessel are brutally murdered by members of Bratva, the Russian mafia—their bodies stuffed into crab pots and thrown overboard. The killers scuttle the vessel off the coast of Alaska and slip ashore. In Washington, DC, Supreme Court Justice Charlotte Morehouse prepares for a trip to Alaska, unaware that a killer is waiting to take his revenge—by livestreaming her death to the world. In Anchorage, Alaska, Deputy US Marshals Arliss Cutter and Lola Teariki are assigned to security detail at a judicial conference in Fairbanks. Lola is tasked with guarding Justice Townsend’s teenaged daughter while Cutter provides counter-surveillance. It’s a simple, routine assignment—until the mother and daughter decide to explore the Alaskan wilderness on the famous Glacier Discovery train. Hiding onboard are the Chechen terrorists, who launch a surprise attack. While they seize control of the engine, Cutter manages to escape with Justice Townsend by jumping off the moving train—and into the unforgiving wilderness.