“Marsha, Queen of Diamonds” / “Marsha’s Scheme of Diamonds”
Written by Stanford Sherman
Directed by James B. Clark
Season 2, Episodes 23 and 24
Production code 9727
Original air dates: November 23 and 24, 1966
The Bat-signal: The police are on alert at U Magnum Diamonds because Marsha, Queen of Diamonds, is back in town—she’s been after the Pretzel Diamond, which U Magnum has on display, for years. O’Hara himself shows up to make sure all is well—and then escorts Marsha inside to take the diamond! O’Hara is completely devoted to her, fawning all over her and threatening the staff at U Magnum with arrest if they don’t give Marsha the Pretzel Diamond.
Apprehensive about his subordinate’s going rogue, Gordon immediately calls Batman, who is in the Batcave doing maintenance on the Bat-diamond and the machine that channels the power to the Bat-computer through that massive, perfect gem. They head off in the Batmobile to GCPD HQ—but Gordon isn’t there! On Marsha’s orders, O’Hara has called the commissioner to Marsha’s hideout.