Episode two of the second season of The Flash airs 8 p.m. Tuesday, Oct. 13 on The CW. The synopsis of the episode titled The Flash of Two Worlds is as follows:
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).