First Teaser For Supergirl/The Flash: Worlds Finest Released

by Russ Burlingame

CBS has released the first Teaser trailer for "Worlds Finest," the March 28 episode of Supergirl which will guest star Grant Gustin as The Flash.

“Worlds Finest” – Kara gains a new ally when the lightning-fast superhero The Flash (Grant Gustin) suddenly appears from an alternate universe and helps Kara battle Siobhan, aka Silver Banshee, and Livewire in exchange for her help in finding a way to return him home, on SUPERGIRL, Monday, March 28 (8:00-9:00 PM) on the CBS Television Network. Grant Gustin crosses over as The Flash.

Supergirl airs Mondays at 8 pm. ET/PT on CBS.

"Worlds Finest" will air on March 28.

By Russ Burlingame

Russ Burlingame has been covering comics and pop culture since 1999. He has written for WIZARD: THE COMICS MAGAZINE, Comic Related, Newsarama, and more before settling in for the long haul at ComicBook.com back in 2011.