1 Tattoo

A new Alpha Pack arrives to wreak havoc on Scott's life while Derek and Isaac search for Erica and Boyd in the Season 3 premiere.

2 Chaos Rising

Allison and Lydia stumble upon a possible clue to finding Boyd and Erica while a childhood friend of Stiles goes missing.

3 Fireflies

Boyd and Cora (Derek's sister) are under the influence of the full moon; Scott and Derek seek help from an unlikely ally.

4 Unleashed

Scott tries to prevent a deadly confrontation. Stiles defends the werewolves.

5 Frayed

A preemptive strike against the Alphas leaves several injured and possibly one or more dead.

6 Motel California

Scott and the gang undergo strange experiences when they are stranded at a motel, causing them to believe members of their own group may be the mysterious killer's newest targets.

7 Currents

Scott's trusted mentor and boss is threatened. Deucalion, Kali and the Twins go after Derek.

8 Visionary

In the past, Derek Hale (age 15) runs through a foggy wood. He trips and falls in front of one of the hunters’ ultrasonic emitters, a device which broadcasts a high pitch designed to herd werewolves in a certain direction. More than a dozen hunters are in the woods with flashlights, guns and crossbows.

9 The Girl Who Knew Too Much

Allison becomes suspicious of someone close to her.

10 The Overlooked

Scott and Derek get trapped inside an evacuated hospital during a powerful storm.

11 Alpha Pact

Derek and Peter try to save Cora's life.

12 Lunar Ellipse

Stiles, Scott and Allison awake in their water-filled metal tubs. They are in a large white room with support posts spaced evenly down its length. The only other features are florescent light fixtures set into the ceiling above and seemingly random areas of grey and white tiling on the floor below.