In the uncharted depths of the ocean, something ancient has awakened. Est Supha, a seasoned deep-sea explorer, barely survives a catastrophic encounter that claims the lives of his entire team-except for one. Haunted by the incident, Est is recruited by the prestigious Vihokratana Research Facility, where he joins a new team led by brilliant scientists, including silly yet mature William Vihokratana, the heir to the facility's legacy. Est and William must work together to stop a prehistoric nightmare before it reaches the surface. But as fear and survival instincts collide, will their growing connection be their greatest strength-or their undoing?