Jack and Charlie are in a band. Their band is called The Bittersweet Kicks. Sometimes The Bittersweet Kicks get asked to play in the bright lighted cities of Sydney or Brisbane or Albury. When that happens they get in a car in suburban Melbourne and drive north.
Being the inquisitive and worldly citizens that they are, Jack and Charlie take every opportunity to experience the cultural delights the Hume Highway presents them with. Good on you Jack and Charlie. Keep discovering that world.