It was previously revealed that Jessica Parker Kennedy would return as Barry future daughter Nora West-Allen/XS and that Jordan Fisher will make his debut as Bart Allen/Impulse in the episode, but now thanks to a new synopsis for the episode we get a little more context about this much-anticipated family team-up.
Previews for next week’s upcoming episode, “Enemy at the Gates” revealed the return of Godspeed as a major threat for Team Flash and Central City so it seems like the heroes may be dealing with the formidable speedster for some time.
Back in May, The CW shared an official first look at Fisher in costume as Impulse with a promo poster that paid homage to the character’s comic return in 2018’s The Flash #50.
XS AND IMPULSE SURPRISE BARRY AND IRIS IN THE 150TH EPISODE OF “THE FLASH” – Barry , only for a shocking secret to threaten their new familial harmony.