Project X boasts better special effects than usual for tight-fisted producer/director William Castle, but it crumbles in the story department. Christopher George is a secret agent living in the year 2118, who through a complex scientific charade is convinced that he's living in 1968. The plan is for George to uncover a secret germ formula that had been hidden away 50 years earlier. Castle's propensity for borrowing gimmicks from earlier films is well known; this time he reaches back as far as a nearly-forgotten 1954 episode of the TV series Flash Gordon! The biological warfare throughline of Project X was more convincing in its source material, a novel by Leslie P. Davies.