An evil scientist in a remote jungle location cultivates giant crawfish (!) as a means of scaring trespassers away from his diamond mine. Condensed from one of the last Republic serials, "Panther Girl of the Congo". (1955).

Jean Evans of an international wildlife foundation, who is known to Africa as 'the Panther Girl' because of her bravery in jungle living, stumbles on a plot by a mad scientist to frighten the natives out of a diamond-laden district by chemically growing crayfish to giant size, and enlists the aid of a game hunter friend to prevent a monster rampage and bring the culprits to justice.

A man (Howard Keel), his wife (Jane Greer) and his famous-aviator ex-wife (Patricia Medina) search for their two children lost with a cougar.

Francis Barclay, a former member of the British Admiralty, who was captured in the early 1700s, and sold into slavery, by Andrew McAllister, and forced into piracy, enlists the aid of Dick Lindsay, to help him invade MacAllister's fortified island. The latter falls in love with MacAllister's daughter,Christine.

Ralph Cotter, a ruthless criminal, escapes violently from a farm prison. Then, he seduces a dead inmate’s sister, gets back quickly into the crime business, faces corrupt local cops who run the city’s underworld and meets a powerful tycoon’s whimsical daughter.

Undertow stars Scott Brady as a gambler just out of wartime military service. No longer interested in wagers and speculations, Brady wants only to open up a mountain vacation lodge. Before this can take place, Brady is framed for murder, and forced to hide out in the home of Peggy Dow. With the help of Dow and a policeman friend, Brady searches for the real murderer. Watch carefully in Undertow and you'll spot new Universal contractee "Roc" Hudson as a plainclothes detective.