Review of The Fighting Devil Dogs

This serial was first syndicated in the 1950's when I viewed it on 3 consecutive Saturdays. The hero is Lee Powell, but Herman "Bruce Bennett" Brix was familiar from the Tarzan serial made later. These Marines get a real workout on land, sea, and air, mainly because the entire USMC seems to consist of about two dozen lightly-armed extras. Stock footage of every imaginable type is the major drawback, plus the inconsistency in WHEN the heroes or bad guys have GUNS or not.(This makes for frequent lengthy fistfights.) Also, viewing it as an adult, they really understated the distance between California and Hawaii : three or four hours by SEAPLANE? The only major plot hole is the stereotypical revelation of the villain. He surely knew that his secret was out, as it's unlikely the girl wouldn't have already told her rescuers. But he tries to kill her anyway? As my long-time favorite punchline goes, "The Lightning's REAL NAME is..." (ZZZZTTT!) How do you spell 'Zzzt'?