High school loner, Evie Grayson, finds herself in over her head when she witnesses three teenage local drug dealers commit murder deep in the woods. Brutally threatened into silence, Evie decides to do what no one else in her town of King's Point will do...take the dealers down.

Teenager Lanie Bouchard, finds herself exhibiting disconcerting symptoms after she secretly gives birth to her daughter, Laura. Her adoptive parents planned to keep the pregnancy a secret and raise Laura as Lanie’s sister, but when Lanie sets eyes on her daughter and falls in love, she finds her parents' rules of separation too drastic to abide and decides she’ll do whatever it takes to be near her...

After Thurston Polk threatens the lone witness of his crime into silence, he and his friends find themselves stalked by a less-than-friendly forest spirit intent on vengeance...

In an act of desperation to protect against losing the one parent she has left, Evie calls upon the Birch once more.

After Ryan’s brutal assault the night before, Thurston and Wes pay their friend a visit in the hospital, only to be warned in veiled terms that Evie is coming to hurt them.

Forced apart from her daughter and thrown back into teenage 'normalcy' at high school, Lanie finds her maternal instincts coming out in bizarre ways. With the situation at home growing increasingly strained, she turns to old sources for strength and purpose...

After Thad’s gruesome death, Lanie finds the house on lockdown as her parents' rules grow increasingly harsh. Dying to connect with her daughter, she takes drastic measures to run away and start over, but her sanctuary is short-lived.

Word has spread of Evie’s potential connection to the deaths of Ryan and Wes, making Evie even more of a social pariah. Returning home to learn that her father has been assaulted by men working for the Polks, Evie decides to pay Thurston a retaliatory visit at his uncle’s shop.

After another disturbing loss, Thurston tries to get the hell out of dodge earlier than planned with Gavin. However, his worst fears are soon realized when his brother becomes the new target of the Birch.

Lanie wakes to find herself locked away in a mysterious bunker under the watchful eye of Dr. Sampson. But with Lanie growing more aware of her abilities, Dr. Sampson doesn't realize the power she's up against...

Waking with regrets, Evie decides to put an end to the bloodshed, but The Birch has other plans. After all, a mother’s love never dies.

After pleading with Evie to spare Gavin’s life, Thurston is caught by Sebastian and his men. When Thurston comes clean to them about Evie's blood-quest, Sebastian proposes a simple solution to their problems - kill the Graysons.

Sickened and exhausted by the bloodshed, can Evie and Thurston work together to end their feud by targeting the true source of both their problems?

Lanie returns home to rescue Laura and enact vicious vengeance on her parents, who she learns have morbid plans in store for them both.

The King's Point Killer has disappeared, but the Birch's inspiration lives on in another young high school girl. When Rory is bullied online by her crush, she summons the protective spirit to seek revenge.

Trapped in the Birch's garden, Evie can hear another young, vulnerable girl, Rory, following in the footsteps of the King's Point Killer, and plots her escape.

Rory summons the Birch to take revenge on her crush. Returning to King's Point, Evie rushes to get to Moses before the Birch does.

With baby Laura in tow, Evie meets Rory- a girl who would love to be her twin sister- to warn her about the Birch's twisted power. Learning that her revenge spell worked, Rory targets her next victims.

While Rory continues her quest for revenge against everyone who's wronged her, Evie finds refuge with Jihan, a social worker who believes Evie is a young mother fleeing an abusive relationship. But Jihan's brother, Razi, isn't so trusting...

Rory puts her dark plan in motion, preparing to sacrifice hundreds of her classmates. When the Birch attacks at the community centre, Jihan must decide if she's going to trust Evie's word or walk away.

Rory livestreams her last message as she seeks revenge on everyone who ever hurt her, while Evie and Jihan go to a place where nothing grows to meet the one other living person with knowledge of the Birch.

Rory celebrates her 17th birthday with cupcakes and her mother tied up with vines. Can Evie stop her in time to prevent mass murder?

Evie is pulled back to the Birch's garden, while Rory enacts revenge against her tormentors. Even if Evie can escape, is there any way to stop the Birch?

Jihan, Razi and Evie square off for a final showdown with the Birch. But a mother's love never dies...