Manis, R: Grail and The Saucer

Teetering between heading back to the present or returning to his girlfriend in Biblical times, our hero chooses "Door number 3" - a risky mission to King Arthur's Court where he must choose between the factions of the King, Sir Lanslod and the usurper Mordred. As the only Jewish knight whose few allies are Mirgan the Witch and the two stoner Venusians, he must decide whether to return the stolen Holy Grail to avoid being burned at the stake or risk being stranded where the food is even worse than modern day England.