Part 1: Four months after the events that nearly ended Jackson's life and resurrected Peter Hale's, teen wolf Scott McCall and his friends begin their junior year of high school unaware that a new threat has arrived in Beacon Hills: a pack of Alpha werewolves intent on bringing Derek into their fold, while destroying his young pack. Part 2: While Scott struggles to find his place as an Alpha, he, Allison and Stiles begin to experience strange side effects as a result of reigniting the power within Beacon Hills. They soon discover that the answer to their problems may be found in a new student named Kira, a girl with remarkable powers of her own