Scott helps win the championship lacrosse game. The wolves are attacked on all fronts and Boyd and Erica leave Derek, terrified of the Argent werewolf genocide.
While compiling evidence to incriminate the puppet-master behind the Kanima, Scott and Stiles are taken hostage. Allison has murder on her mind and targets a wolf.
Scott and his friends try to discover Gerard's master plan; Derek intends to use his own methods for a takedown.