Frogman #1

"Operation Demolition" follows a submarine crew whose vessel is sabotaged by eight disguised free-loaders posing as regular sailors. These intruders are revealed to be divers intent on stealing a sacred pearl, and they escape with diving gear and explosives. The crew pursues them, leading to a confrontation involving Airboy, who helps apprehend the thieves and recover the stolen pearl, with the saboteur Balmon ultimately caught by rangers.