A California wildfire traps a bus full of high school students, including Everett and Blake, who have an encounter with something lurking in the flames. Luna and Harlan cross the fire line in a desperate search for their missing Park Ranger father.

An unknown force draws Everett, Blake, Luna, and Harlan closer as the full moon reaches its apex. Kristin has narrowed down her suspect list. Meanwhile, the search continues for Garrett.

Taken into questioning by Ramsey and her team, Everett, Blake, Luna and Harlan construct an alibi. Luna and Harlan make a startling discovery when they defend Everett from their first terrifying sighting of the creature.

Garrett joins Ramsey's Arson Task Force, hoping to stay ahead of the investigation and protect his children's secret. Blake tries to protect Danny from a monstrous encounter.

The unknown caller leads the pack to the site of an attack. to protect their friends, Everett, Blake, Luna and Harlan crash a party. The task force follows a trail to an abandoned construction site where they discover the fire's point of origin.

The party turns deadly, causing the police to arrive. Ramsey and Garrett engaged with something strange in the woods. The pack visits a former firefighter, Malcolm, to get answers about the wildfire.

The pack uncovers a truth about the wildfires. Blake's family is forced to leave the motel and Luna confides in her crush. Ramsey's investigation closes in on a suspect.

Ramsey has the arson suspect in her custody, but the pack finds a suspect of their own as Garrett learns a surprising truth about his children.