The Fairchild family have it all. At least that's what anyone watching the family of billionaires board the opulent Titan Pacifica would think.

But as Sydney Harbour Bridge starts to disappear in the rear-view window of the luxury liner, so too does any pretence that this is a happy family.

Unbeknownst to his children, CEO and patriarch Irving had planned to use the cruise to reveal his long-awaited succession plans. As glasses clink and elaborate dinners are served to the most notorious of Sydney's elite, it will soon become all too clear that family loyalty can only take you so far.

And although six embark on the journey of a lifetime, not all of the group will make it back to dry land again . . .