A huge burrowing machine tunnels out of control at ferocious speed, cutting clean through to the center of the earth, to the twilight world of pellucidar. Once there, Dr. Perry and David Innes are threatened by half human creatures, lizard-like birds, and man-eating plants.

An evil caliph offers his daughter’s hand in marriage to a prince if he can complete a perilous quest for a magical rose. Helped by a young boy and a magic carpet, Prince Hasan has to overcome genies, fire-breathing monsters, and treacherous swamps to reach his prize and claim the hand of the Princess Zuleira.

During World War I, a German U-boat sinks a British passenger ship and takes the survivors aboard. After getting lost in fog, the submarine surfaces near the unknown island of Caprona, a lost world where they find dinosaurs and Neanderthals.

Nobleman crusader Robin of Locksley breaks out of a Jerusalem prison with the help of Moorish fellow prisoner Azeem and travels back home to England. But upon arrival he discovers his dead father in the ruins of his family estate, killed by the vicious sheriff of Nottingham, Robin and Azeem join forces with outlaws Little John and Will Scarlett to save the kingdom from the sheriff's villainy.

A bored teenage girl decides that she wants to meet rock stars, and the best way to do that is to become a groupie. She finds herself going on the road with a rock band called Opal Butterfly, and soon discovers that being a rock band's groupie isn't as glamorous or exciting as she thought it would be.

In foggy London Dr Jekyll experiments on newly deceased women determined to discover an elixir for immortal life. Success enables his spectacular transformation into the beautiful but psychotic Sister Hyde who stalks the dark alleys of Whitechapel for young, innocent, female victims, ensuring continuation of the bloodstained research. With each transformation Sister Hyde becomes the more dominant personality, determined to eventually suppress the frail, ineffectual Dr Jekyll forever.