Synopsis by Hal Erickson
Steed is accused of masterminding the murders of several enemy agents. Calling a truce with the "other side," Steed tries to unmask the actual culprit (who is a member of an organization appropriately called The Third Party), with the assistant of statuesque Russian agent Olga (the always delightful Anna Quayle). The trail of evidence leads to a training school for gentlemen, appropriately named "SNOB". A reworking of the "Cathy Gale" episode "The Charmers," "The Correct Way to Kill" was written by Brian Clemens; it was originally telecast in England on March 11, 1967, and was first seen in America 13 days later.