Sixties sci-fi double bill. In 'Fantastic Voyage' a group of medics (Stephen Boyd, Raquel Welch, William Redfield, Arthur Kennedy and Donald Pleasence) and a submarine are miniaturised and injected into the bloodstream of a top Czech scientist, who was shot while defecting, in order to carry out delicate, life-saving surgery. Travelling though his body is hazardous, but far more dangerous is the suspicion that one of them is a traitor. They race against time to perform the surgery and escape from the body before they return to their full size. Whilst in 'Voyage to the Bottom of the Sea' USN Admiral Nelson (Walter Pidgeon) takes command of a technologically advanced atomic submarine. With a group of eminent scientists (including Joan Fontaine and Peter Lorre) on board, Nelson sets out to save the world by exploding an undersea belt of lethal radiation. The film inspired a long-running television series.