Riddler’s ultimate goal is to steal the "Mammoth Floodlight" from the Gotham City World’s Pavilion. He uses a mole, Molly (Jill St. John), disguised as Robin to infiltrate the Batmobile and gain access to the Batcave.
The episode features a classic "death trap" scenario where Batman must use his wits and gadgets to save Robin from being cut into "postal-sized pieces" by a giant industrial saw.
A final showdown occurs at the Riddler’s hideout, ending in a colorful "Biff! Bam! Pow!" brawl. The episode concludes with the Riddler seemingly falling to his death in a bottomless pit (though he naturally returns later in the season). Key Highlights & Trivia
Molly holds the distinction of being the first "bad girl" to die in the series; she accidentally falls into the Batcave's atomic reactor while trying to escape Batman.
Frank Gorshin as The Riddler; Jill St. John as Molly.
In classic 1960s Batman fashion, the episode ends with a public service message, this time emphasizing the importance of highway safety and "using your seatbelts." Production Credits Director: Robert Butler Writer: Lorenzo Semple Jr.