After realising that Stiles is not himself, Scott and the group try to figure out how to get the real Stiles back to prevent a disaster from happening.
When Stiles goes missing, Scott and the remaining group set off on a mission to try to find him. Lydia gets an opportunity to try to master her new abilities.
With a crazy killer on loose in Beacon Hills the kids with glowing eyes are in danger. His true target turns out to be a surpise for the gang In more than one way.moreless
Scott, Stiles and Allison face consequences after their ritual sacrifice.
Marty's plan to start up a firm of his own comes to a tumultuous conclusion while Doug and Sarah suddenly decide to get married.
John Cooper's new boot, an Afghanistan war veteran, rubs him the wrong way. Lydia Adams grapples for the perfect balance of work and parent responsibilities. Elsewhere, Sammy Bryant files for custody against Tammi, and Ben Sherman hooks up with a new cop who has a dangerous attitude.moreless
When a TV news reader dies during an on-air power cut, the CSI team must figure out who could have had time to kill her before the lights came back on. Sara contemplates the future of her marriage.moreless
The NCIS team investigates an international car shipping ring when a woman from Deek's past is found to be involved. Kensi goes undercover at an auto body shop as part of the investigation.moreless
Michael risks his life by breaking into the Company headquarters along with the others.
Gretchen tries to get the last card with a meeting with the general.
Trishanne's days may be numbered.