Road Trippin or Trippin While on the Road

It's 2016. A family of five living on their farm in Silvan, Australia abruptly leaves their home. This was the beginning of a bizarre road trip that would span 5 days, 1000 miles and almost half of the party would end up needing psychiatric help... What's even more confusing is it's been 5 years and we're no closer to knowing what exactly happened and why...