House and his team race to diagnose a 12-year-old’s illness – an illness with a shocking origin – and House asks Cameron to come back to her job.

Max, with the help of Kal Langley, undertakes a dangerous journey as he seeks to learn of the fate of Tess and his son. Meanwhile, back in Roswell, Isabel and…

Mulder and Scully suspect that hexcraft is the source of threats against a doctor’s family.