Three young women have gone missing from Boise, Idaho in the last six months, each abducted from their home without signs of forced entry. Through Garcia, the BAU learn that the unsub is tracking these women through social networking sites, and that the unsub, using those sites to tell the victims' friends that "they are on vacation". The BAU assume the unsub has already murdered his victims. The BAU find out how the unsub manages to get into the houses when they find evidence in the houses. They also quickly learn that the unsub is using the Internet for more than just tracking his victims. When Reid figures out the similar physical characteristics of the victims, the team are able to put together a profile. As the BAU get closer to figuring out who the unsub is and his next potential victim, he becomes more brazen by taunting the BAU who he knows is watching him. It becomes a war between computer expert Garcia against the unsub computer expert.