Synopsis for
Monty Python and the Holy Grail (1975)

King Arthur is recruiting his Knights of the Round Table throughout England. He is frustrated at every turn by anarcho-syndicalist peasants, a Black Knight that refuses to give up despite losing both his arms and legs, and guards that are more concerned with the flight patterns of swallows than their lord and master. Finally he meets up with Sir Bedevere the Wise, Sir Lancelot the Brave, Sir Galahad the Pure (also called "the Chaste"), Sir Robin the Not-Quite-So-Brave-As-Sir-Lancelot, and "the aptly named Sir Not-Appearing-In-This-Film", who appears to be Palin's son (a baby those days) suited up in chain mail, and declares them the Knights of the Round Table. When 'riding' to Camelot, they are given a quest by God to find the Holy Grail.

They encounter a castle with a French Taunter who taunts them with random names like 'Daffy English knnnnnnigghits' and makes up insults to them, saying, "I fart in your general direction!" and "Your mother was a hamster and your father smelled of elderberries!" The Knights then retreat, weathering a barrage of livestock. Arthur decides that he and his knights should search for the Grail individually. After they split up, Sir Robin travels through a forest with his favourite minstrels, and encounters a Three-Headed Giant, Galahad follows a Grail-shaped light to the perils of Castle Anthrax (the girls of which are very interested in having sex with him), Sir Lancelot massacres a wedding at Swamp Castle, and Arthur and Bedevere encounter the dreaded Knights who say Ni, who want a shrubbery (they beat the knights by saying "it" though they never figure that is the knights who say ni's one weakness). They each overcome their individual perils and reunite to face a bleak and terrible winter. Surviving the winter by eating Sir Robin's minstrels, they venture further to a pyromaniac enchanter named "Tim", who takes them to a cave guarded by a killer rabbit.

The Killer Rabbit attacksAfter killing the vicious Rabbit of Caerbannog with the Holy Hand Grenade of Antioch, the knights face the Legendary Black Beast of Aaargh in an animated scene, ending because the animator suffered a "fatal heart attack," and cross the Bridge of Death that is guarded by "the old man from Scene 24". Arthur and Bedevere survive to arrive at Castle Aaargh, and face the French Taunter once more. The film ends abruptly when a group of police from the 1970s interrupt the climactic battle scene to arrest Bedevere and King Arthur for the murder of Frank, the "famous historian", who was cut down by a knight while he was narrating a scene from the film.