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.
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.
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.
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.
When the new shapeshifter strikes again, Scott has to recruit a reluctant Allison to acquire a rare book in Gerard's collection, while also once again surviving dinner with her family.
With startling new information about the shapeshifter, Scott and Stiles hurry to protect their friends while Allison is given an investigative task by her family.
As Lydia begins to make connections about the bite from Peter, Jackson causes new problems for Scott and Stiles while Derek has a crisis of faith in his leadership as a new Alpha.
During a secret concert, Scott and Stiles come up with a method to trap the new shapeshifter. At the same time, Allison's mother comes up with a plan of her own to take care of Scott once and for all.
Even as his relationship with Allison becomes further strained, Scott and Stiles must attend Lydia's birthday party while Derek locks his new wolves up to watch after them on their first full moon together.
Scott races to uncover Gerard's master plan following a shocking death on the lacrosse field. Derek plots to take Gerard down using his own methods. Erica and Boyd are captured as Allison continues her merciless bloodthirsty revenge on the werewolves for her mother's suicide. Meanwhile, Scott, Stiles, Lydia, Melissa and Isaac are all under pressure amidst the chaotic events.
While Scott tries to keep Isaac from engaging in a deadly confrontation with the Twins in school, Stiles attempts to prove his theory that the killings have nothing to do with werewolves.
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.
Stranded at a motel for the night because of the postponed cross country meet, Scott and the others suffer strange experiences that cause them to believe members of their own group may the mysterious killer’s newest targets.
As Allison begins to suspect someone dangerously close to her may be involved in the murders, Scott and Stiles conclude that Lydia’s rising talents may be their best bet to solving the murders.
Trapped inside an evacuated Beacon Hills hospital by a powerful storm, Scott and Derek must defend themselves against the Alphas while trying to figure out how to save Cora’s life.
With the threat growing far more personal and time running out on innocent lives, Scott is forced to make a difficult choice in order to save both friends and family while, at the same time, Derek and Peter try to figure out how to save Cora’s life.
Under Deaton’s advice, Scott and his friends use an ancient but extremely dangerous ritual to help them both save the lives of the people they love and stop Deucalion from achieving his sinister goal.
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.
Scott's friends pledge to protect him against an increasingly hostile enemy while Argent, Isaac and Allison search for answers through an old adversary from the Japanese Yakuza. At the same time, Stiles enlists Melissa's help in figuring out exactly what's going on with him.
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.
Scott, Stiles, Lydia, Malia, and Liam are trying to figure out how to defeat the Beast of Gévaudan that the Maid of Gévaudan, Marie-Jeanne Valet, faced in 1765. As Gerard Argent, recounts Valet’s story to Scott’s pack in hopes they can deduce the creature’s weaknesses.
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.
With graduation approaching, a supernatural force rides into Beacon Hills and crosses paths with Scott and his friends, while Liam discovers evidence of a new enemy in the high school.
Trapped within the Wild Hunt, Stiles reunites with an unexpected ally; Scott, Lydia and Malia learn that Stiles' Jeep may be connected to his disappearance.
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.
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.
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.
