First broadcast 27th January 1978.br br American senator John Jerry Patterson is assassinated in daylight in bogus roadworks in full view of other motorists.br br Gordon Jackson - George Cowleybr Martin Shaw - Doylebr Lewis Collins - Bodiebr John Castle - Tommy, CI5 Agentbr Rufus Collins - Tin Canbr Ralph Michael - Estate Car Driverbr Dorothy White - Mrs. Lewisbr Thomas Baptiste - Huntleybr Damien Thomas - Raiderbr Robert McBain - Mr. Lewisbr Jim McManus - Lorry Driver's Matebr David Baron - Mr.