Mavis Davis has had enough! Younger son Eddie wears headphones all day and almost electrocutes her. Older boy Wally is gay and lives in a huge over-ripe banana. And her husband Roly has grown into a blind, motionless, emotionless vegetable. So pack the bags, Mavis is off on an around the world package trip leaving them all behind. However, when Dad finds out she has been joined by their hated next door neighbour long dead passions begin to stir. Blind, senile old Dad decides to chase his wife around the world...

In the early 1900s, Miranda attends a girls boarding school in Australia. One Valentine's Day, the school's typically strict headmistress treats the girls to a picnic field trip to an unusual but scenic volcanic formation called Hanging Rock. Despite rules against it, Miranda and several other girls venture off. It's not until the end of the day that the faculty realizes the girls and one of the teachers have disappeared mysteriously.

Max Rockatansky returns as the heroic loner who drives the dusty roads of a postapocalyptic Australian Outback in an unending search for gasoline. Arrayed against him and the other scraggly defendants of a fuel-depot encampment are the bizarre warriors commanded by the charismatic Lord Humungus, a violent leader whose scruples are as barren as the surrounding landscape.