Over a month has passed, and it seems we are no closer to finding out what happened to Sam.
In this short 6-part series, we look into some of the circumstances surrounding the case and talk to those people on the ground who are searching for Sam.
We speak to experts about some of the theories in the case, from ex-police detectives to experts in telecommunications tracing, bush tracking, and we investigate some of the other theories that have been brought forward in the case.