Plot summary
A drill sergeant ( Sasha Roiz ) at a camp for troubled kids collapses with severe back pain, and House and the team must find a connection when one of his recruits ( Tyler James Williams ) falls ill with the same symptoms. Meanwhile, Chase must track down whoever is pranking him through a social networking site, and House tries to help Rachel get into a prestigious preschool. Final Diagnosis: Variegate porphyria Absent: Olivia Wilde as Remy "Thirteen" Hadley
Credits
Adapted from Wikipedia contributors, House season 7. HTML formatting and reference markers removed.