A handful of strangers are suddenly thrown together as America goes face-to-face against the Communist threat in this curious example of Cold War exploitation. A few people are enjoying drinks in a Manhattan cocktail lounge - television reporter Vince Potter (Gerald Mohr), vacationing tractor tycoon George Sylvester (Robert Bice), cattle baron Ed Mulfory (Erik Blythe), Congressman Arthur Harroway) (Wade Crosby), aimless party girl Carla Sandford (Peggie Castle), and cheerfully dunderheaded bartender Tim (Tom Kennedy). As they discuss the state of the world and their disinterest with U.S. defense and paying taxes, one Mr. Ohman (Dan O'Herlihy) begins swirling his brandy snifter, and before long the other patrons are lulled into a hypnotic state, where they're given a sneak preview of what to expect when an unnamed Communist nation invades the West Coast. Mulfory is able to return home just in time to see his ranch flooded by enemy sabotage, armed troops take over Sylvester's factory, the Congressman watches as Reds seize power, and the suddenly patriotic Carla falls in love with Vince as he covers the brave but futile resistance dished out by our ill-equipped and poorly-prepared military forces. Spectacularly paranoid and loaded with often tattered stock footage, Invasion USA was shot in a mere seven days on a budget of $127,000, and ended up earning its producers well over a million dollars upon its initial release in 1952. Superman fans take note: Phyllis Coates and Noel Neill, both of whom played Lois Lane in the 50's television series The Adventures of Superman, appear in Invasion USA's supporting cast.