'Worlds Finest" is the eighteenth episode of season one of the superhero action series Supergirl. It was directed by Nick Gomez with a script written by Andrew Kreisberg and Michael Grassi based on a story treatment by Greg Berlanti. It first aired on CBS on Monday, March 28th, 2016 at 8:00 pm. This is a special episode of the series as it is an inter-network crossover between CBS and the CW Network television series The Flash. Actor Grant Gustin, who plays Barry Allen on the series, is a special guest star in this episode.

Synopsis Edit

Cast Edit

Principal Cast Edit

Guest Stars Edit

Co-Stars Edit

Notes & Trivia Edit

  • This episode is rated TV-14.
  • This episode is production code number 4X7618.
  • This episode had a viewership of 7.166 million people, which is up by 1.171 from the previous episode. It scored 1.7% in the 18-49 demographic. [2]
  • Central City exists in both Barry Allen's reality, and Supergirl's reality.
  • This is the first appearance of Doctor Amelia Hamilton, who is an analog for Professor Emil Hamilton, a DC Comics scientist and a supporting character in both the Superman comic franchise, as well as the TV series Smallville.
  • The Fire Chief that appears in this episode is the same one that appeared in episode 1x16, "Falling".

Allusions Edit

  • Barry Allen makes reference to Harrison Wells in this episode. Harrison Wells is a scientist from Barry's original reality, Earth-One, who was murdered by Eobard Thawne and had his identity supplanted by him. Another Harrison Wells, "Harry" Wells, is a scientist from Earth-Two, who immigrated to Earth-One and joined the staff at S.T.A.R. Labs.
  • Barry Allen makes reference to Firestorm in this episode. Firestorm is a gestalt being, who is comprised of two individuals who fuse together. Originally, Firestorm was Ronnie Raymond and Professor Martin Stein. After Ronnie's apparent death, the Firestorm coupling consisted of Stein and Jefferson Jackson.
  • Barry Allen makes reference to Black Canary in this episode. There have been two Black Canaries in Barry's reality. The first was Sara Lance, who was killed in action, but later resurrected. During the time that Sarah was dead, her sister, Laurel Lance, became the new Black Canary.
  • Cat Grant insists on naming this new superhero The Blur. This is a wink to the CW Network television series Smallville, where the character of Clark Kent was often referred to as either the Blur, the Blue Blur, or the Red-Blue Blur.

Quotes Edit

  • The Flash: You don't seem that bothered by the fact that you're on fire.




  • Cat Grant: need a clear picture of this Speedster, James that's on you. Kara, there are a lot of people that want to know what happened, speak to no one. You're mine. I will let you know when you should reveal this exclusive information.


  • Cat Grant: The Flash? Sounds like someone whose only superpower is jumping out of an alley in a trench coat.


See also Edit

External Links Edit

References Edit

  1. Credited, but does not appear in this episode.
  2. TV IV; Supergirl, Season One. Episodes Viewers/Rating.

Keywords Edit

CatCo Worldwide Media | Central City | Electrokinesis | Flash | Sonic projection | Space ship | Supergirl | Super-speed | Superhero | Supervillain | Unlikely team-up

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