Shadow of the Tomb Raider will be the final chapter in Lara Croft’s origin story, a transformation we’ve watched over the last five years as she evolves from a budding archaeologist reacting to a series of life-threatening circumstances, to a proactive agent of change in the world.
In Shadow of the Tomb Raider, Lara’s hunting Trinity, trying to dismantle it cell by cell and stop the organization from doing… something terrible. And that’s Lara’s problem, really. She’s so focused on the prevention of Trinity’s machinations, that she fails to fully vet her own actions. The consequence of this blind stop-them-at-all-cost motivation is her inadvertent triggering of an ancient apocalyptic scenario. Oops.
Source: IGN.com Shadow of the Tomb Raider Makes its Mayan Apocalypse Matter