In tonight's episode, the pilot of a plane bringing the president of a Middle Eastern state to London. But during the flight it is discovered that one of the tyres has been tampered with - and the plane will explode on landing. Jimmy Delaney, Garnett's American assistant accompanying the president, has to make a decision that may well cost the lives of all on board.

A tip-off reveals that an attempt will be made to knock out a heavyweight championship contender on an airline flying from Los Angeles - before he can even reach the ring in London.