Hit the Road Ending Explained [SPOILER!]

SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!

SPOILERS AHEAD

Hit the Road Plot Summary and Synopsis

A chaotic, tender family is on a road trip across a rugged landscape, but to where? In the back seat, Dad has a broken leg, but is it really broken? Mom tries to laugh when she’s not holding back tears. The kid keeps exploding into choreographed car karaoke. All of them are fussing over the sick dog and getting on each others’ nerves. Only the mysterious older brother is quiet.

Source: Wikipedia (CC BY-SA 3.0).