AllMovie

"The Silent Killer" is the deadly influenza epidemic that has swept through the territory around the Ponderosa. To combat the disease, tradition-bound Doc Martin (Harry Holcombe) and Harriet Clinton (Louise Latham) set up an emergency hospital on the Cartwright spread. Further complications ensue when Mrs. Evangeline Woodtree (Meg Foster), the wife of a progressive young physician (Ion Berger) who'd been jailed on Doc Martin's say-so, defiantly challenges Martin's old-fashioned methods. Written by John Hawkins and Edward DeBlasio, "The Silent Killer" was first telecast on February 28, 1971.