Dry martini-sipping superspy John Steed (Patrick Macnee) and his partner, the fulgent Tara King (Linda Thorson), take on more espionage -- including infiltrating a top-secret defense installation -- in the final season of this blithely spirited British television series. Episodes include King's journey to 1915, a mind-altering experiment that turns Steed's colleagues into enemies, imposters causing havoc at a peace conference and more.