Three brothers stop off for a night in the town of Tombstone. The next morning they find one of their brothers dead and their cattle stolen. They decide to take revenge on the culprits.

Ex-con turned private investigator Bradford Galt suspects someone is following him and maybe even trying to kill him. With the assistance of his spunky secretary, Kathleen Stewart, he dives deep into a mystery in search of answers.

Two window washers who are mistaken by Nick Craig, a bookie, as the messengers he sent for to pick up $50,000. Now the person he sent them to sent two of his men to get the money back but they found out about it. So they try to mail to Craig but a mix up has the money sent somewhere else and the woman who got it spent it. Now Craig needs the money to pay off one of his clients.

A marine biologist and a government agent investigate mysterious deaths and rumors of a sea monster in a secluded ocean cove, and find themselves involved with a marine biology professor conducting secretive experiments, international spies trying to steal his secrets, a radioactive light on the sea bottom, and the malevolent thing which guards it.

Lt. Col. Glenn Manning is inadvertently exposed to a plutonium bomb blast and although he sustains burns over 90% of his body, he survives. Then he begins to grow, but as he grows he starts losing his mind. By the time he stops he is 50 ft tall, insane and is on the rampage.

A mysterious hypnotist reverts his beautiful assistant back into the form of a prehistoric sea monster that she was in a past life.

Two escaped convicts are found hiding in a rocketship built by a renegade inventor, who forces them to become the crew for a trip to the Moon. Also on board, as inadvertent stowaways, are his assistant and his secretary; and none of them are aware that the inventor is actually a Lunarian explorer sent to Earth by the dying Lunar civilization and the only remaining male member of that civilization.

Brother is pitted against brother in this tale of fueding ranchers in the old west.

A convict is forced to participate in a prison break even though he only has a year left on his sentence.

A newspaper man uses a mobster's tips to get the scoop on gangster activities.