Aliens with the ability to change their appearance to look human infiltrate one of Earth’s most critical strategic defense stations, killing the station’s command crew and taking over. On the Searcher, Buck is bedridden at an inopportune time – an Earth ambassador is about to board the ship before she heads out on a diplomatic assignment. Buck hobbles out of the Searcher’s sick bay to watch the welcoming ceremony, but he see someone other than Ambassador Cabot and his entourage; he later tells Wilma that he saw reptilian creatures instead. Everyone else, however, sees the Ambassador’s party as normal human beings. When Buck suspects that the Searcher’s mission is being compromised, possibly leading to the lizards’ infiltration of all of Earth space, he takes matters into his own hands even though he get his friends to believe his story.
Guest Cast: Linden Chiles (Ambassador Cabot), Vernon Weddle (Dr. Moray), Kim Hamilton (Lt. Paulton), Paul Carr (Lt. Devlin), Frank Parker (Captain), Barry Cahill (Major Elif), Stacy Keach Sr. (General Kenton), Allan Hunt (Willie)
Notes: Apparently the Earth Defense Directorate has either given way to, or is a part of, a body called the Earth Alliance. The show’s plummeting budget was beginning to show clearly, with a barely-altered electronic zodiac game commonly available in 1980, and a Commodore PET computer, serving as very visible props. Guest star Kim Hamilton, a ubiquitous face of 70s TV, also appeared in the Star Trek: The Next Generation episode Final Mission.
LogBook entry by Earl Green