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.

Allison and Lydia locate a possible clue to finding Boyd and Erica while one of Stiles' childhood friends goes missing.

During a bus ride to a cross country meet, Scott and his friends flash back to the events of a preemptive strike against the Alphas that has left several injured and possibly one or more dead.

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

Scott attempts a dangerous plan to draw out The Benefactor. Malia confronts her past.

In hopes of learning more about the Dread Doctors, the pack goes into Eichen House.

After following Dr. Valack's advice, Scott and the others begin to experience strange things.

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.

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

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.

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