Get ready for the ultimate 1970's live action sci-fi series from the highly acclaimed production stable of Gerry Anderson where danger is ever present and adventure is just around the corner. After ten years of setbacks and sabotage, S.H.A.D.O. (Supreme Headquarters Alien Defence Organisation) is finally ready to defend the Earth from Alien invasion, set under the guise of a working film studio. Led by Commander Ed Straker, S.H.A.D.O. will need all their wits, technology and action craft if they are going to win the battle against an Alien race intent on using humans as organ donors.