The story of Brian of Nazareth, born on the same day as Jesus of Nazareth, who takes a different path in life that leads to the same conclusion. Brian joins a political resistance movement aiming to get the Romans out of Judea. Brian scores a victory of sorts when he manages to paint political slogans on an entire wall in the city of Jerusalem. The movement is not very effective but somehow Brian becomes a prophet and gathers his own following. His fate is sealed however and he lives a very short life.
History is turned on its comic head when, in tenth-century England, King Arthur travels the countryside to find knights who will join him at the Round Table in Camelot. Gathering up the men is a tale in itself but after a bit of a party at Camelot, many decide to leave only to be stopped by God, who sends them on a quest: to find the Holy Grail. After a series of individual adventures, the knights are reunited but must face a wizard named Tim the Enchanter, killer rabbits and lessons in the use of holy hand grenades. Their quest comes to an end however when the Police intervene - just what you would expect in a Monty Python movie.