Episode 1 | Memory Lost

A supernatural force crosses paths with Scott and his friends; Liam finds evidence of a new enemy at the high school.

Episode 2 | Superposition

While Scott, Lydia, and Malia search for lost memories of a missing friend, Corey discovers a connection between his abilities and The Wild Hunt.

Episode 3 | Sundowning

While Scott, Lydia and Malia search for Stiles, Liam and the others throw a party to keep Gwen safe from the Ghost Riders.

Episode 4 | Relics

Chris Argent and Malia Tate protect the others that were marked by the ghost riders. Scott, Liam, Hayden, Mason, and Corey help protect the lacrosse team from the ghost riders while Lydia tries to find clues about Stiles.

Episode 5 | Radio Silence

Trapped inside the Wild Hunt, Stiles reunites with an unexpected ally while Scott, Lydia and Malia discover Stiles's Jeep may be connected to his disappearance.

Episode 6 | Ghosted

Scott, Lydia and Malia search for clues about the Wild Hunt in a mysterious place called Canaan while Liam and Hayden resort to drastic measures in the fight against the Ghost Riders.

Episode 7 | Heartless

Scott and Liam make an attempt to capture a Ghost Rider; Malia and Peter try to find a way into the Wild Hunt.

Episode 8 | Blitzkrieg

Scott, Lydia and Malia decide to storm the rift and rescue Stiles. Liam, Hayden and Mason make a deal with Theo to learn Garrett Douglas's plan.

Episode 9 | Memory Found

While Liam and Theo act as decoys, Scott, Lydia and Malia enact a desperate plan to try and remember Stiles.

Episode 10 | Riders on the Storm

With the fate of Beacon Hills hanging in the balance, Scott and his pack face off against Douglas in a final showdown.

Episode 11 | Said the Spider to the Fly

As Scott readies Beacon Hills for this imminent departure, a mysterious presence breaks out of Eichen House.

Episode 12 | Raw Talent

Scott and Malia search for the owner of a unique bullet, fearing that a new breed of werewolf hunter has come to Beacon Hills. At the same time, Lydia must face her own fears of Eichen House.

Episode 13 | After Images

While Scott and the others desperately pursue a missing werewolf, Melissa and Argent investigate the nature of a strange body.

Episode 14 | Face-to-Faceless

Scott, Lydia and Malia have to take drastic measures to quell the growing violence in Beacon Hills, while Liam endures his own gauntlet at the high school.

Episode 15 | Pressure Test

When Scott and the others try to protect two new werewovles, an unlikely ally joins the fight.

Episode 16 | Triggers

Liam and Theo attempt to draw the Hunters away from Beacon Hills.

Episode 17 | Werewolves of London

After a shocking attack leaves the pack reeling, Scott sets out to recruit reinforcements.

Episode 18 | Genotype

The battle lines are drawn, with Scott's pack and Gerard's hunters ready for war.

Episode 19 | Broken Glass

Chris turns to an unexpected ally, while Scott and Malia learn how to fight blindly with the help of Deucalion. Nolan warns Liam about everyone living in Beacon Hills.

Episode 20 | The Wolves of War

Gerard initiates the final attack on the supernatural creatures of Beacon Hills