Dr. House and his team try to uncover the reason a 10-year-old has a heart attack while House suspects one of his team is selling him out to Vogler.

House's wheels start turning when a pro-cyclist admits to taking performance-enhancing drugs.

When a six-year-old boy is brought in with the same symptoms as another patient who died years ago under House's care, House believes the cases are identical and he can predict the course of the boy's illness. Meanwhile, the clinic hosts a poker night to benefit the oncology department.