‘The Flash’ Season 3, Episode 19 News, Promo: What Happens In ‘The Once and Future Flash’ [SPOILERS]

Caitlin turns into Killer Frost in Episode 8 of "The Flash when Julian tries to revive her. Now, in "The Flash" Season 3, Episode 19, the biggest challenge for Team Flash is to stop Killer Frost from becoming the complete, evil villain.

Warning: This article contains spoilers from "The Flash" Season 3 installments. Read if you wish to know more.

"The Flash" Season 3, Episode 19 Spoilers and Airdate

Like "Supergirl," "The Flash" goes on a brief hiatus and will not return until the last week of April. "The Flash" Season 3, Episode 19 returns from hiatus and will air on Tuesday, Apr. 25.

The promo for "The Flash" Season 3, Episode 19 shows Barry asks the Barry from the past that if he is from the time before she dies. Barry is still looking for Savitar and assures that they can stop him.

Meanwhile, in "The Flash" Season 3, Episode 19 promo shows Killer Frost warning Barry that he is going to quite surprised by how things will turn out. Can Barry turn Killer Frost to Caitlin again? We will find out when the show returns on Apr. 24.

Meanwhile, Tom Felton, who plays Julian, speaks with TVLine about what happens in "The Flash" Season 3, Episode 18. After Abra Kadabra, the villain from Earth-19, escapes, an explosion by the villain injures Caitlin.

Julian tries to revive her by giving electric shocks, but it doesn't work. She is dead. Then, Julian removes her necklace and unleashes Killer frost.

"We give her compressions. We even give her the old electric shock trying to start the heart, and none of it works. We actually accept that she's dead, but in the very, very final moment, Julian grabs the necklace off of her and immediately she comes back to life because her Killer Frost genes are very strong," Felton said.

Stay tuned for more "The Flash" Season 3 updates, news, and spoilers. Share your views with Korea Portal in the comments section below.