The Lone Defender

The Lone Defender finds Rin Tin Tin the canine hero of another serial where he unmasks the murderer of his blind prospector master and saves the mine for his daughter. In normal cases the dog would have been shot as well.

But villain Lee Shumway is a craftier villain than that. He realizes that the dog just might be the only one who can lead the bad guys to the mine and stake a proper claim before the daughter June Marlowe can do it. So a good deal of the elaborate schemes are into capturing Rin Tin Tin. Shumway's cause isn't help by the necessary presence of henchman Bob Kortman who did the actual killing of Marlowe's father. Rinty has a natural positive dislike for this man and the feeling is mutual.

Aiding and abetting Marlowe in her pursuit of justice is the mysterious Mexican Walter Miller who has let it get around that he's the notorious outlaw, the Cactus Kid. Also helping is young Buzz Barton who in real life was a trick rider and starred in a number of westerns for the younger folks at this time.

The Lone Defender is yet another of these serials which take the plot of what could be a decent B film and stretch it into excruciating lengths. That's why they only showed them one chapter at a time.