A young English girl, Penelope Townes, finds an opal pendant in her attic and, in playing with it, releases two Australian genies (father Bruce and son Baz). When Penelope inherits a property in Australia, the genies are delighted to be able to return home. But they are still under Penelope's control and subject to her whims–a situation complicated by Penelope's neighbour, Otto von Meister, insisting that the opal is really his by rights and by Bruce falling in love with Penelope's mother, Lady Diana.
