Batman (1966–1968)
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When the Rat's Away, the Mice Will Play 

After escaping the Ridder's deathtrap, the Dynamic Duo lie low to discover the ultimate goal of the supervillain's crime wave.



, (based upon characters appearing in "Batman" and "Detective" comics magazines created by)

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Episode cast overview:
Alfred (credit only)
King Boris
T.V. Announcer


Batman manages to escape the Riddler's death trap. He and Robin decide to lay low until they can figure out the Riddler's caper. Meanwhile, the Riddler frees King Boris, who brings a gift to a major monument in Gotham City. It turns out the Riddler has substituted a bomb for King Boris's gift and he is demanding a ransom. The Riddler, though, overplays his hand, enabling Batman and Robin to capture the Riddler and his gang. Written by Bill Koenig

Plot Summary | Add Synopsis





Release Date:

17 February 1966 (USA)  »

Company Credits

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Technical Specs


Sound Mix:

(RCA Sound Recording)


Aspect Ratio:

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Did You Know?


Look for a visual joke in this episode: after the Dynamic Duo escape from the Riddler's deathtrap and return to the Batcave, Batman phones Commissioner Gordon to update him on the latest developments in the case. During this scene, the perspective keeps switching to show Robin pacing back and forth behind Batman at one end, and Chief O'Hara and another policeman pacing back and forth behind Commissioner Gordon at the other. See more »


When Batman hurls the Riddler's orange-clad henchman through the air during the fight, the wires holding the henchman aloft can be seen. See more »


Riddler: [coming into the lair and seeing all of the River Rats asleep] RISE AND SHINE!
[the Rats tumble out of bed]
Riddler: Sorry, my dear Rats, to disturb your slumber, but I believe you *are* working for me?
[one of the Rats nods]
Riddler: Then sleep ON YOUR OWN TIME!
See more »

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User Reviews

Riddles rule the day, as long as there's time to play
18 May 2016 | by (Youngstown,Ohio) – See all my reviews

"When the Rat's Away the Mice Will Play" opens with the drive shafts' power shorted out by Batman's cutting torch, which he was able to reach in his utility belt with one hand. This unlikely turn goes unnoticed by The Riddler and his River Rats, moving forward with their ultimate goal, allowing King Boris (Reginald Denny) to deliver his statue to the Queen of Freedom monument, unaware that Riddler has planted a time bomb inside, demanding a million dollar ransom to deactivate it. Commissioner Gordon calls upon Bruce Wayne to supply the necessary cash, allowing the millionaire playboy the opportunity to meet Batman (!), actually a disguised River Rat named Whitey (Roy Jenson), who suggests no police at the museum drop site so that he and Robin can make the snatch themselves. Still believing the Dynamic Duo to be defunct, The Riddler is astonished to reach for the missing replica, only to find a riddle for him waiting: "what squeals louder than a caught rat, several caught rats!" ("I've been outriddled!"). It's almost a shame that Frank Gorshin's manic performance has to come to an end, but he'd be back twice more this first season. The one cameo here is that of Marvin Miller (THE MILLIONAIRE), as the T.V. Announcer for the live presentation from King Boris.

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