Lara and her guide are trekking in Peru. She opens up a doorway in the caves and wolves charge out, killing her guide. Lara kills them and ventures in. After some time, she comes across a piece of the Scion in the Tomb of Qualopec, one of three rulers of Atlantis before it sank. As she leaves, she notices the figure of Qualopec moving before the tomb collapses. She makes her escape and sees Larson waiting for her and the piece. They fight but Lara wins. Larson, at gunpoint, says that Natla has sent Pierre DuPont to find the second piece of the Scion. Lara knocks him out and steals his shotgun before leaving.
Deep in the abandoned mine, she meets up with Larson again. They fight once more but Lara kills him. She is upset for doing it as this was her first human kill but she pushes on, meeting Kold and Kid, who end up killing each other whilst trying to kill Lara. She traverses her way to the top of the Atlantean pyramid and confronts Natla.