House: Season 4, Episode 1

4 - 1: Alone

When an office building collapses, House has to work fast to diagnose a young woman, Megan, who has managed to survive the disaster. Without a team, House talks through his ideas with a janitor at Princeton-Plainsboro. As House persists in diagnosing Megan by himself, he soon realizes the case is not what it appears to be and that solitude may not be the answer.