The 12th episode of Gene Roddenberry’s science fiction series Star Trek airs on NBC. In an effort to save costs, Gene Roddenberry devises a framing story – referred to behind the scenes as “the envelope” – allowing footage from the rejected 1964 pilot episode The Cage to be used within the context of Star Trek’s current cast as a flashback to a previous crew of the Enterprise. Malachi Throne guest stars in the new footage; Jeffrey Hunter and Susan Oliver are seen in the original footage from The Cage. 
Stardate 3013.1: Spock reveals that the Keeper of Talos IV has control of the viewscreen and the evidence being presented. The screen shows the events that occurred during Pike’s visit to Talos IV in great detail, but Spock has difficulty convincing Kirk and Mendez of the validity of what they are seeing as well as the tremendous power of the Talosians. When the evidence suddenly stops, Mendez orders Kirk and Pike, the ranking officers forming Spock’s trial board, to make their verdict, and all find Spock guilty. The final part of the record of Pike’s adventure then continues, and then Commodore Mendez vanishes from the Enterprise. The Keeper himself tells Kirk that the Mendez that accompanied him in the shuttle and the trial was an illusion projected from Talos IV, and that Pike is welcome to return to the planet and be restored, as Vina was, to his former strength and health.
written by Gene Roddenberry
directed by Marc Daniels
footage from The Cage directed by Robert Butler
music by Alexander CourageCast: William Shatner (Captain James T. Kirk), Leonard Nimoy (Mr. Spock), DeForest Kelley (Dr. Leonard McCoy), James Doohan (Mr. Scott), George Takei (Lt. Sulu), Nichelle Nichols (Lt. Uhura), Sean Kenney (Captain Pike), Malachi Throne (Commodore Mendez), Hagan Beggs (Ensign Hansen)
Appearing in footage from The Cage: Jeffrey Hunter (Capt. Christopher Pike), Susan Oliver (Vina), Majel Leigh Hudec (Number One), Peter Duryea (Lt. Tyler), John Hoyt (Dr. Boyce), Meg Wylie (The Keeper), Adam Roarke (CPO Garrison)
Notes: Both parts of The Menagerie used footage of the original series pilot The Cage as the visual evidence of Pike’s early mission; in truth, the framing story was hurriedly written by Gene Roddenberry and was designed to be shot quickly so the re-use of the already-produced (and already paid for) pilot episode could fill a critical gap in the schedule caused by production delays. Produced half a century after this episode, the Star Trek: Discovery episode Through The Valley Of The Shadows reveals that Pike had foreknowledge of his fate, something he grappled with in season 1 of Star Trek: Strange New Worlds. Spock visited Talos IV again in the Discovery episode If Memory Serves, a visit that also prompted Vina to appear again to Pike.
LogBook entry by Earl Green