An epic fantasy adventure based on the timeless Arthurian legend, "The Green Knight" tells the story of Sir Gawain (Dev Patel), King Arthur's reckless and headstrong nephew, who embarks on a daring quest to confront the eponymous Green Knight, a gigantic emerald-skinned stranger and tester of men. Gawain contends with ghosts, giants, thieves, and schemers in what becomes a deeper journey to define his character and prove his worth in the eyes of his family and kingdom by facing the ultimate challenger.
Will (Winston Duke) spends his days in a remote outpost watching the live Point of View (POV) on TV's of people going about their lives, until one subject perishes, leaving a vacancy for a new life on earth. Soon, several candidates - unborn souls - arrive at Will's to undergo tests determining their fitness, facing oblivion when they are deemed unsuitable. But Will soon faces his own existential challenge in the form of free-spirited Emma (Zazie Beetz), a candidate who is not like the others, forcing him to turn within and reckon with his own tumultuous past.