I is for Interceptors

The Interceptors form the first line of defence against alien attack towards the Earth. Operating in groups of three and launched from SHADO's Moonbase, these single-pilot interceptors attempt to destroy the alien craft using large nuclear missiles fired from the spacecraft's nose. You only get one shot - so make it count!

UFO was created by Gerry Anderson and Sylvia Anderson, with Reg Hill. It was the Andersons' first totally live-action TV series, released in 1970, and their first aimed at a more adult market. Sadly, it lasted only one season.