Scott and Stiles look to help out Kate against the pack.
Satomi's pack looks for protection from Scott and others. Malia and Stiles find out more secrets about the dead pool list.
Scott carries out a dangerous plan. Meanwhile, Malia confronts her past.
Scott's position on the lacrosse team is threatened. Meanwhile, Stilinski investigates a murder.
Scott turns to an unlikely ally in order to stop Kate.
Lindsay is at a crossroads regarding Charlie and Halstead convinces her to talk to Voight; Burgess copes with losing her shot in joining the Intelligence Unit; Voight discovers Jin is a Internal Affairs mole; The Intelligence Unit investigates stolen explosives at the construction site; and the team loses one of their own.moreless
The Intelligence Unit investigate a violent armed robbery in a bank; Burgess asks to go undercover on the case to prove herself; Platt asks Ruzek for an unusual favor off-the-books; and Halstead spends time with the family of his high-school sweetheart.moreless
Halstead is investigated for the murder of Lonnie Rodiger, which Voight suspends him pending investigation; The Intelligence Unit works on a missing when a missing torso is found in the car; Detective Sumner is given a chance to prove her worth in Intelligence; and Lindsay enjoy the late night visit from firefighter Kelly Severide.moreless
Olinsky's teenage daughter, Lexi witnessed a gang shooting, which would make her a target if she testifies; Ruzek helps Burgess on the undercover assignment; Halstead continues to investigate Lonnie Rodiger's activities; and Voight has to cope with the warnings of his IA contact Stillwell.moreless
Voight works with a former partner during an investigation, and he's also assigned a new Internal Affairs handler who doesn't trust him. Meanwhile, Halstead seeks help gathering information about Lonnie Rodiger; and Olinsky attempts to deflate Ruzek's ego and offers a boost to Atwater.moreless
In this episode,Scott and Lydia join forces to bring back Stiles back from his subconscious. Meanwhile Sheriff Stilinski faces the review board and Scott's father is going to reveal the reason why he left his mother.Ethan,Aiden,Derek and Issac start acting a bit different.
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.
While Cat is undercover for the FBI, Vincent reveals he is still alive on a national talk show. Searching for more information about his beastly beginnings, Vincent runs into Cat in the middle of a heist leaving them no choice but to work together.moreless
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
An unlikely foe offers to help Derek and Peter.
Scott, Stiles and Allison face consequences after their ritual sacrifice.
The lunar eclipse descends upon Scott and his friends as they fight to stop Jennifer and rescue their parents.
While Peter and Derek try to save Cora's life in the aftermath of the storm, Stiles works frantically on a plan to prevent his father and Scott's mother from becoming Darach's next victims. Ultimately, there's a difficult choice to be made that could endanger everyone's lives and change them forever.moreless
A storm is descending on Beacon Hills as the identity of the Darach is revealed setting up the final battle of witts and fists.
Gerard and Peter reminisce of the events that made Deucalion and Derek the men they are today. But both Scott and Stiles have reservations regarding the truthfullness of their versions fo the past.moreless
The battle between Derek's pack and the Alpha pack brings about serious repercussions.
Derek, Scott, and Issac track down Boyd and Cora with the help of Chris Argent to try to capture them before they hurt anyone. Meanwhile, Lydia finds a dead body and Stiles starts to put together a theory once he finds out it's not the first.moreless
A friend of Stiles vanishes while Lydia and Allison discover a hint as to the location of Boyd and Erica.
While Riley is consumed with wedding preparations, Kyle attempts to find some way to help his family. Meanwhile, Evan and Trimble are tasked with going undercover in a massage parlor and Derek and Selena try just being friends.moreless
The CSI's team investigates the murder of a ghost hunter.