The two unlikely travel buddies experience a monumental coming-of-age moment as Meg experiences her first ever period. But after changing her tampon in a roadside toilet, she accidentally leaves her purse behind in the cubicle. Officially out of money, Lucky and Meg's day gets a whole lot worse when they run out of fuel as well, just as the local highway patrol is escalating its manhunt in the area for two highly wanted persons.

Lucky wakes up to find that Meg has taken off with the ute and the piano, leaving him all alone in the scorching Nullarbor heat. He contemplates giving up and going home, but a potentially poisonous snakebite causes him to have a vision of his mother, who urges him to find the piano and keep going.