During the course of her day-to-day investigative research, Lara Croft comes across some clues referring to a small island in the Bering Sea: a faded photograph showing an Inuit Whalehunter holding what looks like an ancient Golden Mask, an old newspaper from 1945 referring to a conflict over an Alaskan gold discovery, and a secret kind of fortified military minebase.
Lara is primarily interested in finding the Mask, as it is rumored to be the famed Golden Mask of Tornarsuk - a greater spirit said to bestow powers of re-animation on the mask wearer.