Two cavemen, The Duke and Stonejaw Steve, call on Miss Araminta Rockface. The hated rivals fight, and Steve wins when he throws The Duke into a pot of boiling water. A title card introduces a third rival, "our unassuming hero, Theophilus Ivoryhead." Miss Rockface invites the three men into her father's drawing room/cave, apologizing fo...

In a dream Uncle Jack looks through a magic telescope owned by the ghost of a hermit and sees what life was like millions of years ago, including a battle between prehistoric monsters.

Set in prehistoric times, this short film was created for the Edison Company by Willis H. O'Brien, a pioneer of American stop-motion animation.

A lost submarine discovers a secret island where dinosaurs still live. The film, 20 minutes long, was scrapped by RKO. Approximately 4 minutes survived.

A caveman falls victim to a prehistoric prankster, but he is avenged by his pet chicken.