Agrega una trama en tu idiomaG-Man Ted Riley (Lloyd Hughes ) is ordered to investigate happenings at Diamond Island, where a bogus Major Gray (Grant Withers) is reported engaged in manufacturing a new brand of secret ga... Leer todoG-Man Ted Riley (Lloyd Hughes ) is ordered to investigate happenings at Diamond Island, where a bogus Major Gray (Grant Withers) is reported engaged in manufacturing a new brand of secret gas for his own purposes. Riley blows up his motor boat just off the island and is picked up... Leer todoG-Man Ted Riley (Lloyd Hughes ) is ordered to investigate happenings at Diamond Island, where a bogus Major Gray (Grant Withers) is reported engaged in manufacturing a new brand of secret gas for his own purposes. Riley blows up his motor boat just off the island and is picked up by Gray's men. On the island he discovers chemist Professor Baker (John Cowell) and his d... Leer todo