CBS confirmed The Flash (Grant Gustin) will be teaming up with Supergirl (Melissa Benoist) for a special cross-over episode. According to the network, the Supergirl cross-over episode with The Flash will air on Monday, March 28, 2016 at 8pm ET/PT.
CBS didn’t announce any details on the episode other than to confirm Barry Allen/The Flash is “speeding to National City.”
“We are so incredibly excited to announce something that we have dreamed of happening since we starting making Supergirl – The Flash and Supergirl are teaming up!” said The Flash and Supergirl executive producers Greg Berlanti and Andrew Kreisberg. “We want to thank Grant Gustin for making the time to come visit (on top of his already immense workload) and all of the folks at CBS, The CW, Warner Bros. and DC for working this out. And finally, thanks to the fans and journalists who have kept asking for this to happen. It is our pleasure and hope to create an episode worthy of everyone’s enthusiasm and support.”
Season one of CBS’ Supergirl stars Melissa Benoist, Mehcad Brooks, Chyler Leigh, Jeremy Jordan, David Harewood, and Calista Flockhart. The Flash cast is led by Grant Gustin and includes Danielle Panabaker, Jesse L Martin, Carlos Valdes, Tom Cavanagh, and Candice Patton.
 will be heading to Supergirl for a special cross over episode airing on March 28, 2016.){kind=link}