‘The Flash’ Season 3, Episode 15 live stream, where to watch online: ‘The Wrath of Savitar’ [SPOILERS]

Wally is having visions of Savitar while training with Barry, but he chooses to hide from the team. Watch "The Flash" Season 3, episode 15 online via live stream, here.

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

Barry and Wally train together and during the session, Wally has visions of Savitar, but he decides to keep it a secret. Meanwhile, a dangerous secret threatens Iris and Barry's happiness.

Elsewhere, the Flash-Supergirl musical crossover is set to happen and the CW has released photos from the episode. According to Entertainment Weekly, Darren Criss debuts as the DC Comics victims and his character has the unusual ability to make the victims break out into song.

Barry and Kara are stuck in an alternate reality in which their life is like a movie musical. They have to follow the Music Meister's script to get out of it.

Meanwhile, actor and musician Keiynan Lonsdale, who plays Wally, spoke with Blavity about his music and playing Wally West.

He is asked if playing the superhero as a person of color ever hit him or if he is just doing his job.

"It's both. Yeah, I am doing the work, but at the same time, it's difficult not to recognize the impact that it does have. When I get to meet people and they express to me how inspired they are and that it makes them feel like they can do anything - that is huge. And it's so important, that's what this whole thing is about. I'm glad that I get to be part of a show that presents that to their audience," Lonsdale said.

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