Ten years after the horrific events in Santa Carla, Chris Emerson and his younger sister Nicole arrive in the desolate, damp coastal town to live with their eccentric Aunt Jill following the tragic death of their parents in a car accident. Seeking a fresh start, the siblings instead find a community deeply entwined with a predatory underground subculture. Nicole, rebellious and feeling alienated by her grief, is quickly seduced by Shane, the charismatic, leather-clad alpha of a pack of local surfers who moonlight as ruthless vampires. Shane’s motivation is driven by a desire to expand his undead family and cement his absolute rule over the nocturnal underworld. Unbeknownst to Nicole, Shane introduces her to the vampire lifestyle by slipping her his blood disguised as a party drug at a secret beach rave, trapping her in a agonizing, irreversible
transformation process that requires her to consume human blood to survive. Meanwhile, Chris attempts to navigate high school and crosses paths with the legendary, albeit aging and increasingly eccentric,
vampire hunter Edgar Frog. Edgar recognizes the unmistakable scent of the undead and warns Chris of the grave danger threatening his family. Driven by desperate protective instincts, Chris teams up with Edgar, utilizing a makeshift arsenal of garlic-laced water balloons, crossbows, and holy water-tipped arrows to hunt down the creatures terrorizing the town. As Nicole’s humanity rapidly slips away and she grows increasingly feral, she distances herself from her brother, fully embracing her new predatory instincts under Shane’s hypnotic influence. To save Nicole from becoming a soulless monster forever, Chris and Edgar infiltrate the vampires' subterranean headquarters beneath an abandoned amusement pier. A brutal, bloody confrontation erupts as the vampire pack ambushes the intruders, utilizing their supernatural strength and speed to overpower the human hunters. Amidst the chaos, Chris manages to isolate Shane. Remembering Edgar’s crucial lore about the ancient vampire hierarchy, Chris realizes that destroying the head vampire will instantly break the bloodline and potentially cure those who have only recently been infected. In a desperate, high-stakes climax, Chris drives a wooden stake directly into Shane’s chest, causing the alpha and his loyal lieutenants to disintegrate into piles of ash. The sudden death of the master vampire halts Nicole’s full transformation just in the nick of time, purging the toxic blood from her system and restoring her human consciousness. As the morning sun rises over Santa Carla, Chris and a deeply traumatized Nicole reconcile, choosing to leave the cursed town behind forever alongside Edgar Frog, who resolves to continue his lonely crusade against the remaining darkness lurking in the shadows of the world.