With high school a distant memory, Jim and Michelle are getting married — and in a hurry, since Jim's grandmother is sick and wants to see him walk down the aisle — prompting Stifler to throw the ultimate bachelor party. And Jim's dad is reliable as ever, doling out advice no one wants to hear.

The story of the Arthurian legend, based on the 'Sarmatian hypothesis' which contends that the legend has a historical nucleus in the Sarmatian heavy cavalry troops stationed in Britain, and that the Roman-British military commander, Lucius Artorius Castus is the historical person behind the legend.

Holmes and Dr. Watson take on the case of a beautiful woman whose husband has vanished. The investigation proves strange indeed, involving six missing midgets, villainous monks, a Scottish castle, the Loch Ness monster, and covert naval experiments.