The Big Bang Theory (2007–2019)
5 user

The Justice League Recombination 

The guys enter a costume contest as members of the Justice League and convince Penny and Zack to join them.


Mark Cendrowski


Chuck Lorre (created by), Bill Prady (created by) | 6 more credits »




Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Kevin Sussman ... Stuart Bloom
Brian Thomas Smith ... Zack Johnson


Penny starts dating Zack again. Used to being the target of bullying, Leonard, Sheldon, Howard and Raj instead bully Zack through their implications to him that he's stupid. Not fully realizing what they're doing until Penny points it out to them, the guys decide to apologize to Zack in the only way they can. Accepting their apology, Zack decides to start hanging out with them, much to Penny's chagrin. This hanging out leads to the idea that Zack should replace Leonard as Superman in their group Justice League of America costume for the New Year's Eve party at the comic book store, with Penny the sixth wheel as Wonder Woman. These actions lead to questions from Leonard to Penny about why she's back together with Zack. Written by Huggo

Plot Summary | Plot Synopsis


Comedy | Romance


See all certifications »






Release Date:

16 December 2010 (USA) See more »

Also Known As:

The Justice League Recombination See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


At the end of the episode, when Sheldon runs to the Grand Canyon, the song playing is The Flight of the Bumblebee " which is the theme song of another hero, The Green Hornet. See more »


During Sheldon's "Flash running to the Grand Canyon" fantasy, he's shown crossing the Colorado Street Bridge to get to the Grand Canyon. Sheldon and Leonard's apartment is on Los Robles Avenue, Pasadena; the Grand Canyon is in Arizona, east of Pasadena; the Colorado Street Bridge is west of Los Robles Avenue; Sheldon-Flash would be running away from the Canyon to get to the bridge. The place which is shown as the Grand Canyon is in reality the 'Dead Horse Point' near Moab in Utah. See more »


[first lines]
Raj Koothrappali: [playing a card] Water Demon.
Howard Wolowitz: [playing a card] Ice Dragon.
Leonard Hofstadter: [playing a card] Lesser Warlord of Ka'a.
Sheldon Cooper: Not so fast.
[playing a card]
Sheldon Cooper: Infinite Sheldon.
Leonard Hofstadter: Infinite Sheldon?
Sheldon Cooper: Yes. Infinite Sheldon, it beats all other cards - and does not violate the rule against homemade cards because I made it at work.
Leonard Hofstadter: You understand why people don't want to play with you?
See more »


References Muppet Babies (1984) See more »


Auld Lang Syne
Written by Robert Burns
[Played after the stroke of midnight]
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Not funny anymore
26 December 2018 | by htbahbSee all my reviews

I'm not really sure what happened to this series... but season 3 and season 4 have been more than disappointing. Just cliché after cliché, bad dialogues and scenes that have lost quality after being repeated so many times

Not even Sheldon can maintain this afloat by himself. Amy is a good addition besides Bernadette, but the rest of the cast... boring. Predictable.

1 of 4 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 5 user reviews »

Contribute to This Page

Recently Viewed