In "Dual", Claire, Noah, Meredith, and Angela, are trapped in the Level 5 facility by Sylar, who initiates the lockdown mode. Sylar attempts to strike a deal with Claire, agreeing to let her, Noah, and Meredith go if she kills Angela, but Claire refuses and, after helping Noah escape from a trap, "kills" Sylar by stabbing him in the back of the head with a piece of broken glass. Claire goes back for Meredith, who has lost control of her pyrokinesis after being injected with adrenaline by Sylar, but is persuaded to leave her behind, telling Meredith she loves her and escaping with Noah and Angela as the building goes up in flames. She is then comforted by Noah as she mourns her biological mother's apparent death.