In the mid-1950s, with a grant from the U.S. Fish and Wildlife Department, wild bird trainer Ed Durden and his eighteen-year-old son, Kent Durden, capture a young golden eagle on a mountain near Santa Barbara, California. They name her “Lady” and house her in a specially constructed mountaintop aerie.
100 miles north, a bit east and up, is Flåklypa... home of bicycle repairman Reodor Felgen and his two assistants - Solan Gundersen, morning bird and natural born optimist, and Ludvig who is a true pessimist.
A newly arrived governor finds his province under the control of the corrupt Colonel Huerta. To avoid assassination by Huerta, he pretends to be weak and indecisive so Huerta will believe he poses no threat.
During World War I, a German U-boat sinks a British ship and takes the survivors on board. After it takes a wrong turn, the submarine takes them to the unknown land of Caprona, where they find dinosaurs and neanderthals.
In this sequel to True Grit, John Wayne returns as Marshal Rooster Cogburn. After a band of drunken thugs overruns a small Indian Nation town, killing Minister Goodnight and raping the women folk, Eula Goodnight (Katherine Hepburn) enlists the aid of Marshal Cogburn to hunt them down and bring her father's killers to justice.