Jerry and Pamela North live in Greenwich Village in New York City. Jerry is a mystery magazine publisher who thinks he is a good amateur detective. He and his wife investigate various crimes and solve them before the police do.
When some men are attacked by Indians, a survivor obtains an Indian medicine arrow. An Indian tells Blade he has found gold but will not tell him where until he has that arrow. So Blade starts killing the survivors of the attack but fails to get the arrow. One of the men he kills is John Cardigan and Kit Cardigan, a Scout for Custer, now starts looking for the killer of his father.
A Secret Service agent searches the jungle for his missing brother, also an agent. He encounters a young woman there who is also searching, but for her missing father. They encounter a gang of ivory smugglers who hold a prisoner who knows the secrets of the missing people and a lost treasure. The pair are also menaced by a giant gorilla which guards the temple which is the smugglers' lair.
A western adventure serial in 12 episodes. Buffalo Bill battles gambler Jim Rodney who is trying to scare off the townspeople so he can gain possession of a gold strike discovered in the area. A nearby Indian tribe is provoked to attack the town and the cavalry is called in.
A masked hero called "The Eagle" leads California ranchers in a struggle against Russian Cossacks who are plotting to take over California and turn it into a Russian colony.
A mad scientist tries to sell his formula for a dist integrating gas to foreign powers.