Printed in Issues #11 thru #13 of the British comics magazine called Lion and Champion (aka Lion #750-752 and Champion #26-28) that came out weekly. This is the 3rd comic story of Danger Man after the merging of the two magazines. This comic story is 6 pages or 2 per issue. John Drake, the British Secret Agent known as Danger Man must stop those who want to destroy an Atomic Research Station. Is it the American Pop Group called the Crazy Guys or are they impostors?
Here are the pages I have of it.