STAGE 1: The Green Knight shows up and wants to test the knights of the round table. He lets Sir Gawain take one swing at him with an ax, but the Green Knight is allowed to do the same in a year and a day.
STAGE 2: The wife of the king tests Sir Gawain. He is tempted with lust, fortune, and finally something to save his life. He accepts the 3rd temptation, and makes his way to the Green Knight.
STAGE 3: The Green Knight is the king and tells Gawain that he was only testing him, and Gawain walks away with his life.