McLaren (Paul Hubschmid) is chosen to be the first astronaut into outer space in a multi-national mission. The launch goes as planned but soon disaster strikes and asteroids are sent hurtling towards the Earth causing disasters all over the world!
The only way the world can be saved is by the West and the Soviets working together and using their nuclear arsenals for good...
The movie has some good ideas, and some of the plot points will re-appear in later films. However, this is all rather odd and poorly made and the poor special effects (though fairly standard for the time) are overly padded out with stock footage. The film is what it is, and is worth watching for the curiosity value and for the plot being quite novel in many ways.