A retired watchmaker and his robot care unit leave Birmingham to find a portal located in a Cornish waterfall by the date of the Summer Solstice, to travel to the alternate dimension of Albion. A prophecy outlines that three strangers, an old man, a youth, and a metal man, will help a King battle evil Celtic Witches using an unorthodox strategy and victory will be attained. The youth will age prematurely and become a dragon rider, the old man will reverse age and get romantically involved and the metal man's technology will breakdown, but not before they devise and build war weapons and win a battle with Celtic Wizards, capable of hurling fire balls down from the heavens.