Daredevil relic hunter brothers Jonas and Jace are called off a Spanish museum job the head a team assembles hastily by collector-tycoon Mills to rescue his other team, headed by Jonas's ex Villers, on Artic Canada's Monster island. Their initial target was a Chinese codex from a Victorian ship containing the only evidence on the Yeren, a Chinese version of the yeti. It turns out the bloodthirsty species is alive, and far more dangerous the polar bears, with a primate-like social life, yet Mills offers a fat premium to catch one alive, despite the rising body count, but his rival also has surprises in store.