A wristwatch-smuggling gang bring watches into the country in a car's petrol tank. Poor Zena Marshall knows too much, so the gangs abducts her. Stalwart customs official Anthony Steel struggles manfully to rescue the girl.
The work of Peter Ketley on Fisheries Research in Devon is being disorganised by a mysterious new method of salmon poaching. His young brother Bob, with the help of two children from London, eventually uncovers and catches the poachers.
En los Alpes suizos unos extraterrestes con forma de ojo, que se ocultan tras una nube radioactiva, se hacen con el dominio telepático de los lugareños, a los que terminan decapitando.