Help!

The Beatles are chased around London by members of an Eastern cult after Ringo Starr, drummer of the band, unknowingly puts on a ceremonial ring that won't come off. As the cult and a pair of mad scientists, led by Clang, pursue the Beatles, the band resorts to the bumbling efforts of Foot, a mad scientist and his assistant Algernon, and later receives aid from the beautiful but dead-eyed assassin Ahme. The Beatles then flee to the Austrian Alps, the Bahamas, and Buckingham Palace, narrowly escaping capture by the cult and scientists at every turn, until they finally manage to outsmart them and retrieve the ring.