Scott, Stiles and Allison suffer side effects from the ritual sacrifice; Sheriff Stilinski searches through old cases.

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

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.

Stiles goes missing; Scott and the others set off on a search; Lydia tries to master her new abilities.

Scott and the others try to prevent a disaster; Lydia and Allison seek out an unlikely teacher.

An important clue is revealed in the story of a World War II internment camp; Kira's role is more crucial, and she discovers unusual abilities.

Kira faces an unexpected enemy.

Scott and Derek call upon their friends and allies to make a last stand.

Scott teams up with an unlikely source in the hopes of putting an end to Kate's evil plan.

Whilst Stilinski investigates a murder, Scott has his place on the Lacrosse team threatened by a freshman.

Scott, Stiles and Kira participate in their first Lacrosse game; Lydia looks to get help controlling her powers.

A mysterious outbreak takes over the high school.

Scott and Stiles return to La Iglesia to save the Pack from Kate.

On the eve of senior year, Scott and his pack deal with the arrival of a new enemy and the return of an old friend.

Stiles is suspicious of a new classmate; and Lydia helps a student with night terrors.

Scott tracks a new shapeshifter that's threatening Stilinski; and Malia receives information about her mother.

Stiles is suspicious about a new girl showing up and what her intentions are. Scott's plans to protect the newest victim are derailed when The Dread Doctors attack.

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.

With both lives and friendships on the verge of being destroyed, Scott and his pack face their greatest enemy yet.

As Scott tries to put his pack back together, Malia and her new ally set out to rescue Deaton from The Desert Wolf.

With the identity of the Beast finally revealed, Scott and his friends are in a race against time to stop The Dread doctors from implementing their final plan.