Classy, intelligent, witty political drama series about the fascinating, ruthless businessman/politician sir John Wilder who becomes Special Envoy (the original name of the series was "Special Envoy'') - ambassador for special situations and trade - and has to deal with the equally ruthless competition. His wife is the witness, trying to support him without interfering much, while his handsome secretary is too ambitious for his own good. The sequel to "The Plane Makers". Starring Patrick Wymark, Barbara Murray, Jack Watling, Michael Jayston, Clifford Evans, Peter Barkworth, George Sewell, Ian Holm, Richard Hurndall, Barrie Ingham, Donald Burton, Norma Ronald, Robin Bailey, James Maxwell, Rachel Herbert, William Devlin, Philip Madoc, Norman Tyrrell, John Brooking, Peter Hughes, Peggy Sinclair, Ralph Michael. Written by Peter Draper, Wilfred Greatorex, Edmund Ward, John Bowen, Raymond Bowers.