The Nogitsune is overpowered and paralyzed far too easily, using his possession of Stiles to use the sheriff -whom Rafael McCall saves from prosecution, admitting the whole case was only to meet and help Scott- as physical protector. Opening Stiles's belly with Kira's mother's, Rhys releases bugs who invade people to force them to spread his evil chaos. Thus the twins are turned against each-other and Isaac ties up Alison before taking them on. Derek is turned against Peter and Chris Argent, who he sees as a brutal hunter again. Peter accepts to show Lydia, for a secret, how Scott and she can enter Stiles's mind to attempt separating him from Rhys while those play chess on the druid tree, but the physical success contains another trap.