'The Flash' To Cross Over To 'Supergirl' In March

It's been confirmed. Barry Allen is zooming into National City! Details will be announced at a later date.

CBS announced Wednesday that the episode of "Supergirl" will air Monday, March 28 at 8 p.m. Seen locally on CBS 62.

"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 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."