SOS Coast Guard (1937)

An internationallynotorious criminal scientist returns to the US to sell his latest invention a disintegrating gas to a foreign power When he arrives however he is spotted by a young Coast Guard man whom he kills and thus earns the enmity of the entire US Coast Guard but especially the murdered Guardsmans older brother who together with his reportergirlfriend and her comical photographer vigorously sets to tracking him down and interfering with his plans to develop the citymelting gas in quantity A Republic Serial in 12 Chapters