Pariah enlists Black Lightning to help stop the Anti-Monitor after Flash-90 shares what he learned from his battle in ‘Elseworlds.’ With the help of Black Lightning, Barry, Cisco and Killer…

After Zoom unleashes an army of Earth-2 meta-humans on Central City, Barry is shaken when he sees their leader is the Black Canary’s Earth-2 doppelganger, the Black Siren. Meanwhile, Wally…

Barry and the team look for another Firestorm match for Dr. Stein. When the team meets Jefferson “Jax” Jackson, Caitlin has her reservations about whether Jax is the right match…

When Cisco gets a vibe of Eobard Thawne, Barry and the team don’t believe it. But, after an attack at Mercury Labs, Christina McGee confirms that the Reverse Flash is…

Felicity and Ray Palmer pay a visit to S.T.A.R. Labs for help getting Ray’s ATOM suit to work, and ask Cisco for help. Meanwhile, a young tech expert raises havoc…

Barry enjoys the annual tradition of tree trimming and gift exchange with Joe and Iris. He gives Iris a touching gift, but the moment is interrupted by Eddie’s arrival.