The Dig

"The Dig" is the 18th episode of the seventh season of the American medical drama House. It first aired on April 11, 2011. This is the 150th episode of the series and marks the return of Thirteen, whose whereabouts have been unknown to House's team for the last year. Wilson and Cuddy do not appear in this episode. Plot The episode starts with House waiting outside Middlebury Correctional Institute in New Jersey. It turns out he is picking up the freshly released Thirteen, who is surprised to see House. As they drive away, House asks her what she did. When she replies that she was in jail for "excessive prescribing", House states that this was only her plea bargain and not the truth. Thirteen avoids the question. Meanwhile, back at the hospital, Masters presents a case to her teammates: a 36-year-old teacher coughing up blood. House pages the team that he will be away for three days. Chase and Foreman ignore Masters' case. Chase plans to go on vacation to Cabo while Foreman plans to go skiing. House is, however, listening on Masters' phone and forces the team to test the patient. House avoids telling the team about Thirteen. After talking with the patient, Chase diagnoses a Serratia infection, which is immediately ruled out by patient coughing up blood. House mentions he is going to a spud-gun competition. They take a detour to buy fresh clothes for Thirteen and around a residential neighborhood where Thirteen knees an unidentified man (portrayed by Lost co-creator Damon Lindelof) in the groin at his house. House tells Thirteen about his relationship with Cuddy and their recent breakup. Thirteen tells House that she killed a man.