In remote Greenland, ex-Air Force General Steven Macaulay helps lead an expedition to recover a lost World War II plane. Encased in ice below is an astonishing find: a perfectly-preserved Viking ship, buried for a thousand years. Assembling Viking scholars, Macaulay tasks Lexy Vaughan to translate the ship's markings, then her colleagues are murdered. Lexy and Macaulay are hunted by a secret cult that will go to the end of the earth to hatch an ancient plot of death and world domination.