In a forgotten corner of the universe, a spaceship suffers an accident and crashes on a desolate planet, where sunlight is almost a rarity. The survivors, a diverse and somewhat conflicted group, are forced to join forces to survive. Among them is Riddick, a dangerous convict with exceptional skills in the dark, who manages to escape the clutches of prison, along with a group of people ranging from a lost pilot to a mother searching for her child.
As night falls, the planet reveals its terrifying secret: nocturnal creatures awaken and feast on any living being that crosses their path. What seemed like a simple survival issue turns into a desperate struggle for life, as deadly predators stalk them in the darkness.
As trust among the survivors wears thin and tensions rise, Riddick begins to emerge as the key figure, using his knowledge of the terrain and his cunning to lead the group in their attempt to escape. However, despite his criminal nature, his protective instinct starts to flourish, leading to a moral dilemma between survival and personal redemption. In the end, chaos, betrayal, and the true nature of each character jeopardize their existence, revealing that in the darkness, we all have our own demons.