I saw this only very recently again, after more than forty years since it was screened in the UK by the BBC. It is based on the eponymous Desmond Bagley thriller and features Stuart Wilson as "Alan Stewart", co-opted (reluctantly) by former boss "Slade" (George Sewell) to carry out the simple delivery of a package to a character in Iceland. Yeah, right - well that was what was supposed to happen, ver mais...