“We have received confirmation that there is a hostage situation in progress at a warehouse compound two hours out of Los Angeles, following a multiple-vehicle pileup on Highway 101 this morning...” The one in which Stiles has lived to (legal) adulthood and, along the way, become a bit of a badass himself.

Stiles goes to a Halloween party on campus to blow off some steam after a stressful week of midterms. He doesn't expect the party to be crashed by both a supernatural predator and Derek Hale.