A family is relocated by FBI after the twin sisters stop a diamond thief with ketchup. They are blabbermouths so, as last chance, they end up in in Sydney, Australia. 2 mobsters are sent there for them and the hidden diamond.

A straight-laced bank manager about to marry the love of his life. When his bank is held up by infamous Ghost Bandits during his wedding week, he believes his future in-laws who just arrived in town, are the infamous Out-Laws.