The Flash of Two Worlds is The Flash Season 2’s most anticipated episode in the same way as Mark Hamill’s return as The Trickster was Season 1’s most anticipated or even arguably The Flash Vs Arrow crossover episode.
Now The CW have finally given us the official synopsis of the episode set to air on October 13, 2015.
“Flash of Two Worlds” — (8:00-9:00 p.m. ET) (TV-PG, LV) (HDTV)
INTRODUCING JAY GARRICK — Jay Garrick (guest star Teddy Sears), a mysterious man from Earth-2, appears at S.T.A.R. Labs with a dire warning about an evil speedster named Zoom, who is set on destroying The Flash. Barry (Grant Gustin) and the team must decide if they can trust this stranger even as they face yet another powerful meta-human. Meanwhile, Joe (Jesse L. Martin) must deal with a determined officer named Patty Spivot (guest star Shantal VanSanten) who wants to join his meta-human task force. Jesse Warn directed the episode written by Aaron Helbing & Todd Helbing (#202).