Several people disappear from and at the sea. Their bodies are found gnawed to the skeleton, even the marrow is missing. The scientists have no idea which animal could do such things. Dr. Turner begins to suspect that the company which builds a tunnel beneath the bay might have poisoned the environment and caused an octopus to mutate to giant dimensions...

By his dying father's last wish Joe is sent to the Wild West to become a real guy. The dreamy young man despises guns and fights likes poems and prefers bicycles to horses. Now his three teachers footpads all of them shall teach him otherwise. This doesn't work until Joe has to defend himself against gunman Morton who's jealous of Joe's love to rancher Ohlsen's beautiful daughter.