Ironside Season 6 Episode 13 Shadow Soldiers ( Air Date 1972-12-21 ) Genre Crime, Drama, Mystery category. Overview "Whilst in London at a conference with the Chief, Ed witnesses an assassination, and promptly becomes the killer's next target. Meanwhile he and Ironside have to work with the local forces to find the assassin, but find themselves hampered by the Superintendent on the case, an old friend of the Chief's who seems to have a hidden agenda.".