As the sun sets over the secluded woods, the Abbott family - patriarch Lee, his partner Adele, and their 13-year-old daughter Wen - embark on a peaceful getaway at a remote cabin, seeking respite from the stresses of everyday life. However, their tranquil retreat is brutally interrupted by the arrival of four mysterious strangers, each armed to the teeth and driven by an unsettling fervor. The group, led by a charismatic and calculating leader named Andrew, claims that they are on a mission to prevent a catastrophic event that will soon destroy humanity. They inform Lee, Adele, and Wen that the only way to stave off this impending apocalypse is for one of them to make the ultimate sacrifice - giving up their life in exchange for the fate of the world. As the family struggles to comprehend the gravity of Andrew's demands, they find themselves trapped in a desperate game of psychological manipulation. The strangers' true intentions and motivations remain unclear, leaving Lee, Adele, and Wen with an impossible choice: sacrifice one of their own or risk dooming humanity to extinction. Tensions escalate as the family's relationships are put to the test, forcing them to confront their deepest fears, insecurities, and values. As the standoff reaches a boiling point, each member of the Abbott family must confront their own mortality and make a decision that will have far-reaching consequences for themselves and the world at large. Through its gripping narrative and thought-provoking themes, Knock at the Cabin probes the darkest recesses of human nature, inviting viewers to ponder the ultimate sacrifice and the true cost of saving the world. As the stakes grow higher and the clock ticks closer to Armageddon, this tense thriller raises crucial questions about the value of life, the power of love, and the depths of human resilience in the face of unimaginable chaos.