The team of investigators tries to capture a serial arsonist who has been terrorizing a college campus in Tempe, Arizona. Most of the evidence from the fires had been burned beyond recognition, so the BAU must rely on psychological analysis to identify the firestarter.
The whole gang is off to Atlantic City when Marshall and Lily finally decide to get married, but eloping just isn’t as easy as it used to be!
Sarah, John and Cameron track down another name on their list and wonder why a T-1001 would need a doctor. Meanwhile, a woman from Derek's past surprises him in the present.
