The Avengers - Season 3 - Eps 9: The Medicine Men
Willis-Sopwoth, a top pharmaceutical firm, is being drained by cheap imitations of its products in foreign markets. The death of a member of staff while investigating the fraud brings Steed and Cathy face to face with a deadly artist and a plot to poison children.
About The Avengers

Title: The Avengers
First Air Date: 1961-01-07
Last Air Date: 1969-05-21
Status: Ended
Rating: 7.729/10 (from 140 votes)
Language: EN
Seasons: 7
Total Episodes: 161
Network: ITV1
Genres: Action & Adventure, Crime, Sci-Fi & Fantasy
Production Companies: Associated British Picture Corporation, Associated British Corporation, ABC Weekend Television
Synopsis
A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an urbane, proper gentleman spy - teams with various assistants throughout the series' run, including Dr. David Keel, Cathy Gale, Emma Peel and Tara King, to repeatedly save the world from diabolical schemes plotted by equally diabolical evil-doers (among them robots and man-eating monsters).
Cast

Patrick Macnee
John Steed

Linda Thorson
Tara King

Ian Ogilvy

William Lucas