An epic fantasy adventure based on the timeless Arthurian legend, The Green Knight tells the story of Sir Gawain, 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.

William Thatcher, a knight's peasant apprentice, gets a chance at glory when the knight dies suddenly mid-tournament. Posing as a knight himself, William won't stop until he's crowned tournament champion—assuming matters of the heart don't get in the way.