This is where the tension rises. Sheldon is terrified of hospitals, germs, and the lack of control. He creates a scene, refusing to wear the hospital gown and demanding to know the credentials of every nurse who enters the room.
The episode centers on Sheldon Cooper's first major health scare. After experiencing a persistent stomach ache, Sheldon is hospitalized for a few days. True to his character, he becomes the "world's worst patient," demanding constant attention and making life difficult for the hospital staff and his family.
The episode ends with the family reunited. Sheldon is back home, resting on the couch. He is humbled slightly by the experience, realizing that he isn't invincible.