Sir Gawain, King Arthur's reckless and headstrong nephew, embarks on a daring quest to confront The Green Knight, a gigantic emerald-skinned stranger and tester of men, to prove his worth in the eyes of his family and kingdom. On his journey, Gawain contends with ghosts, giants, thieves, schemers, and the ultimate challenger in this fresh and bold spin on a classic tale from the knights of the round table.