House: The Right Stuff

House is interviewing potential team members and is doing it his own way. He has called in all 40 applicants for the open spots on his team, each numbered individually by runners' bibs, and puts them to the test in a Darwinian trial period. Greta, a candidate for NASA's astronaut training program, suffers from a neurological disorder in which she is converting visual images to sound, or hearing with her eyes. Knowing that NASA would reject any possibility of her becoming an astronaut if they knew of her problem, she begs House to treat her in secret. Keeping her identity private, House takes the case to his fellowship candidates and pits them against one another to come up with an accurate diagnosis. Meanwhile, House is ruffled when he thinks he sees Cameron, Chase and Foreman in the hospital hallways, fearing he's lost it. But it turns out they have all come back for new jobs at the hospital.