The young scientist Indiana Jones receives his first teaching post - at the archaeological department of the University of London. The smartest - and most beautiful - of his students, Deirdre Campbell, claims to know about a golden scroll that testifies to the real existence of Merlin, a sorcerer and the mythical mentor of King Arthur himself. Indy is intrigued by this news, as is Adrian Powell, a member of Parliament trying to revive the ancient order of Druids, whose secret power will pave the way for world domination. Indy abandons his books and textbooks to join Deirdre in search of an ancient relic. The heroes' adventures unfold throughout Britain - from the dangerous caves of Scotland, to the deadly dance of giants at Stonehenge, where Indy finally manages to reveal Merlin's secret. But before that, he will have to experience the hatred of a maniacal deputy and the love of Deirdre Campbell.