Scott struggles to balance his new life as a werewolf and the pressures of being a teen, all while avoiding werewolf hunters and trying to score a second date with Allison.

On the night before Halloween, Mischief Night, a convicted murderer brought to Beacon Hills Hospital for surgery escapes, forcing Scott and his friends to step in to help when his unexpected target becomes clear.

There's another animal attack involving Lydia and Jackson, raising more questions about wild animals. Meanwhile, Scott and Allison skip school and Derek must deal with the werewolf hunters on his own.

Scott and Allison end up in a group date; an animal attack has Stiles' sheriff father on the lookout.

Scott tries to control his transformation so he can spend more time with Allison. Elsewhere, Derek continues trying to make an ally of Scott.

Jackson seeks out a specialist regarding the wound on his neck.

The secret behind Derek's tattoo is revealed and the Alpha pack make their presence known. Derek and Isaac struggle to locate Erica and Boyd.

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.

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

The hunt is on for Derek's whereabouts, meanwhile Stiles tries to help Scott with controlling his transformation when a second full moon is approaching.

With Boyd and Cora on the loose and under the influence of the full moon, Scott and Derek must turn to an unlikely ally for help.

Kira and her mother make a journey to help Kira deal with her dark side; Lydia is surprised at Eichen House.

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

Scott tries to keep Derek from creating new werewolves; Argent officially begins Allison's training; the new creature in town takes another victim.

Scott and Malia get help to try to find Hayden and Liam. Deaton discovers something horrific about the dread doctors. Hayden and Liam will be faced with a life and death situation.

Even without the support of his pack, Scott considers what the Dread Doctors' success means for Beacon Hills.

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.

Scott and the others must make a discovery before it’s too late.

A new hunter comes to town and shoots Derek, who is certain to die unless Scott can find the right kind of bullet that caused his injury.

Scott and the others are trapped inside the high school as the Alpha draws near.

When Lydia goes missing from the hospital, werewolves and hunters begin a search.

Scott and his friends ponder catching the werecoyote before it is hunted down; an unlikely ally helps Derek and Peter break out.

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

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

Isaac's father is murdered; Scott, Stiles and Derek plan a break-out. At the same time, the Argent family remove the principal and Allison's grandfather replaces him. Scott senses that another werewolf is in the lacrosse locker room and plans to sniff them out, literally.