Lucky Flynn hasn't spoken to his family in years. When he learns that his mother has only days left to live, Lucky sets off in a hire car to drive the 4,000km from Sydney to Perth to say goodbye.

Lucky is desperate to see a doctor after losing his pills for his anxiety. But Meg has other ideas.

Meg is beside herself when she loses all of her's and Lucky's money. To make matters worse, they then run out of petrol.

Waiting for their ute to be repaired, Meg and Lucky join a campground party on the Great Australian Bight, but the night takes a nasty turn when Lucky discovers a suicide note.

Lucky starts to think he should give up when Meg takes off with his piano. Then, a snakebite gives him the wake-up call he needs.

A transformed Lucky prepares to make a major sacrifice. But it's not long before some bad news sends him spiralling into despair.

Lucky finds himself paying the price for Meg's misdemeanours. But that's just the start, things are about to get a whole lot worse.

There's tension as Lucky reunites with his brother. As Meg tries to smooth things over, she learns why Lucky had to bring the piano.