Season 7 Episode 21 episode 21

The Big Bang Theory Season 7 Episode 21 “The Anything Can Happen Recurrence” Photos

The Big Bang Theory Season 7 Episode 21 “The Anything Can Happen Recurrence” Photos

The Anything Can Happen RecurrenceWhen Sheldon tries to be spontaneous, it leads to unexpected friction between Penny, Amy and Bernadette.

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Check out the sneak peek images for "The Anything Can Happen Recurrence" (airing on April 24) in the gallery below:

Source: CBS