Under the pretense of having a picnic, a geologist takes his teenage daughter and 6-year-old son into the Australian outback and attempts to shoot them. When he fails, he turns the gun on himself, and the two city-bred children must contend with harsh wilderness alone. They are saved by a chance encounter with an Aboriginal boy who shows them how to survive, and in the process underscores the disharmony between nature and modern life.

In the Australian Outback, the Carmody family--Paddy, Ida, and their teenage son Sean--are sheep drovers, always on the move. Ida and Sean want to settle down and buy a farm. Paddy wants to keep moving. A sheep-shearing contest, the birth of a child, drinking, gambling, and a racehorse will all have a part in the final decision.

Max Foster (Carl Betz), an American newspaper reporter, is in Hong Kong to assist a defecting Russian diplomat. In return for arranging an escape, the diplomat must turn over to Foster a diary revealing the true events taking place in China. While making his escape, the defector is killed ant the diary vanishes. The reporter sets off on a search for it, from Hong Kong to Australia. The chase ends in an action-filled climax, with the journalist finally meeting up with "That Lady from Peking" (Nancy Kwan) - the diplomat's daughter.

A novelist wakes up with a gun in his hand and a corpse in the house he woke up in. He doesn't remember how he got there or even if he committed the killing.