Hunted by raiders, a band of crusading knights escort the holy grail through a valley of black death where they must hack and slash their way to freedom.

Sherlock Holmes and Watson are on the trail of a criminal and scientific mastermind who seems to control monsters and creations which defy belief.

Brian Jones, Jimi Hendrix, Janis Joplin and Jim Morrison all died at the age of 27 between 1969 and 1971. At the time, the coincidence gave rise to some comment,…