Moran, in his Guide to Australian TV Series, summarises the plot of Flight into Hell as follows:
A German pilot, Hans Bertram, and his mechanic, Adolph Klausmann, left the Dutch East Indies in May that year  to fly to Darwin but a violent storm forced them off course and they landed in the Kimberley Ranges. It was six days before they were discovered to be missing. A search commenced, but unfortunately in the wrong area. After almost a month, the Australian authorities realised that the flyers were not where they were looking and began a new search. The two were eventually found but only after suffering tremendous hardships and deprivations.
The mini-series was based not only on the real story of Hans Bertram and Adolph Klausmann but also on Bertram's subsequent published account of their tribulations. The book sold well and the mini-series had the input of some of the ABC's most experienced professionals but, according to Moran, 'the series as presented on the screen fell fairly flat, perhaps because of the prolonged scenes of privation.'