Masters faces a career crossroads on her last day as a medical student and struggles with the choice to continue on the path to become a surgeon or to accept the rare opportunity to join House's team officially. Meanwhile, the team treats a 16-year-old girl who inexplicably collapsed days before embarking on an ambitious sailing tour around the globe. Despite the patient's life-changing diagnosis, the patient's family insists on getting her back on the seas in time for her potentially record-breaking launch. But to the team's surprise, including House, Masters makes a bold decision regarding the patient's treatment.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
Thirteen returns as Masters prepares to graduate. Her final case is that of a teenage girl (Michelle DeFraites) aiming to become the youngest sailor to circumnavigate the globe. As the case progresses, Thirteen voluntarily lets Masters perform the last required lumbar puncture on her, meanwhile House offers Masters an internship in return for forging her lab work requirements. Initially refusing to compromise her integrity, she declines. But when her patient takes a turn for the worse, she must make a decision: her principles, or her patient's life? Final Diagnosis: Lymphoid sarcoma ( Lymphosarcoma )