Batman - Season 2 - Eps 39: The Penguin Declines
Batman, summoning all the strength he can muster, breaks his chains and frees Robin from the giant clam. The heroes arrange for the Joker's former confederate, Venus, to stay at an apartment while they figure out what to do next. Meanwhile, the Joker has freed the Penguin from Gotham State Prison to continue their crime wave. The Joker tricks Venus into asking Batman to take her to the Batcave. The Dynamic Duo take her to their base of operations (but only after making her fall asleep first). When they arrive, the Joker, Penguin and assorted thugs are revealed to be hiding in the Batmobile's trunk. Batman, however, anticipated this and none of the criminals know where the Batcave is. A figure erupts, with Batman and Robin finally ending the zodiac crimes.
About Batman

Title: Batman
First Air Date: 1966-01-12
Last Air Date: 1968-03-14
Status: Canceled
Rating: 7.3/10 (from 547 votes)
Language: EN
Seasons: 4
Total Episodes: 120
Network: ABC
Genres: Sci-Fi & Fantasy, Comedy, Action & Adventure
Production Companies: 20th Century Fox, Greenway Productions
Synopsis
Wealthy entrepreneur Bruce Wayne and his ward Dick Grayson lead a double life: they are actually crime fighting duo Batman and Robin. A secret Batpole in the Wayne mansion leads to the Batcave, where Police Commissioner Gordon often calls with the latest emergency threatening Gotham City. Racing to the scene of the crime in the Batmobile, Batman and Robin must (with the help of their trusty Bat-utility-belt) thwart the efforts of a variety of master criminals, including The Riddler, The Joker, Catwoman, and The Penguin.
Cast

Adam West
Batman

Burt Ward
Robin

Yvonne Craig
Batgirl

Neil Hamilton
Commissioner Gordon

Stafford Repp
Chief O'Hara

Alan Napier
Alfred

William Dozier
Narrator (voice)