Set in California, the series follows teenagers Everett Lang and Blake Navarro, whose lives intersect during a terrifying wildfire that traps motorists on a highway. Amid the chaos, both are bitten by a mysterious, ancient creature awakened by the flames. Unbeknownst to them at the time, they share this harrowing experience with two foster siblings, Harlan and Luna Briggs, whose park-ranger father found them in the woods years earlier under similarly strange, lupine circumstances. As the supernatural infection takes hold, Everett and Blake begin experiencing bizarre physiological changes, including heightened senses, superhuman strength, and uncontrollable animalistic rages. Drawn together by their shared affliction, the four teens form a fierce, protective bond, realizing they are part of a newly awakened wolf pack.Meanwhile,
arson investigator Kristin Ramsey arrives in town to determine the wildfire's origin, secretly tracking the beast while dealing with her own dark agenda. The teenagers soon discover that the fire was not a
natural disaster, but a deliberate act designed to unleash the creature, which is searching for its lost mate and offspring. As the pack struggles to hide their transformations from their parents and classmates, they face escalating danger. They cross paths with Garrett Briggs, the park ranger, who harbors secrets about the children's origins and the true nature of the beast. Tensions peak when the creature begins hunting the town, leading to bloody confrontations that test the pack’s loyalty and survival instincts.As the mystery deepens, allegiances shift and shocking revelations come to light regarding the beast's identity and its connection to Kristin Ramsey. The finale delivers high-stakes drama, culminating in a brutal showdown where the teenagers must fully embrace their inner wolves to protect their loved ones. They manage to subdue the creature, but the victory is bittersweet, leaving the pack fractured, traumatized, and forever altered by their newfound supernatural reality.