'Flash' season 1 episode 15 is set to air this Tuesday night and it looks like the show is taking a turn for the worse when it comes to Joe's storyline. After emerging successful in slaying a meta-human in the previous episode, Joe will find himself at the mercy of another meta-human known as The Weather Wizard. Can Barry be quick enough to save Joe? Or will we see someone dying tonight at the expense of a brother's desire for vengeance. Don't miss the brand new episode tonight. Watch 'Flash' season 1 episode 15 stream through the free online stream link found below.

Note: This feature contains spoilers on the upcoming episode of 'Flash' Season 1. Kindly read at your own risk.

The CW's latest hit series is apparently shrouded in mystery and deceit. Dr. Harrison Wells, who has been a good mentor to Barry Allen, may have to come out clean about his real identity and his concealed powers. In the past, the face of the villainous character has been obscured because of his speed, but now that the cat is definitely out of the bag, how will Barry, Caitlin and Cisco handle the repercussions of the shocking revelation. Watch 'Flash' season 1 episode 15 online using the free online stream link at the end of this post.

In a recent interview with Hollywood Reporter, actor Tom Cavanagh gushed about his rather twisted role. "It's ultimately why I signed on to this job. Not to play a scientist, but to play a time-traveling bandit," he said. "If anybody has followed The Flash, then they know Reverse-Flash and The Flash are not just doing this right now in the present day. They have a long history and there's nothing that we're not going to pursue when we try to tell the story. We're trying to tell all of it." Don't miss the exciting episode this Tuesday night. Watch 'Flash' season 1 episode 15 stream through the free online stream link at the end of this post.

Meanwhile, show executive producer Andrew Kreisberg has gushed about the storyline of the brand new episode, and according to him, the show will be taking on time travel next. "We're definitely talking about the ramifications of time travel," he said. "There are episodes coming up where there is concern of certain events being changed in the past [that] would affect who people are and their relationships with each other. If the past changes, does the present change as well?" Kreisberg then added, "There's an unexpected, accidental time travel coming up. And it is played both for hilarity and darkness. It happens in an episode we're really excited about - the first Weather Wizard episode with Liam McIntyre."

"With no disrespect to any of the other directors or episodes that we have produced, I think this is the best episode we've ever done," Kreisberg told E! News recently. "Everything that The Flash can do—and I don't mean Barry Allen [Grant Gustin] as the hero, but as a TV show—this episode delivers in spades. It's got amazing visual effects that you don't see on television, it's full of heart, it's full of romance, genuine scares, and it's the best version of this show. Between this and Arrow, there's only a handful of episodes we say this about and I definitely feel like this is it."

The official synopsis of 'Flash' season 1 episode 15 reads: "Mark Mardon aka The Weather Wizard appears in Central City intent on avenging his brother Clyde's death, and sets his sights on Joe, who shot Clyde. When Mardon attacks Joe and Barry, Barry is able to super-speed them to safety but Mardon gets away. Barry warns Joe not to go after a meta-human alone but Joe doesn't listen and ends up in grave danger. Meanwhile, Cisco looks into the night the team captured the Reverse Flash and realizes something doesn't add up and begins to wonder whether Joe was right about Dr. Wells. Barry and Linda end up on an awkward double date with Eddie and Iris."

"Out of Time" is set to air this Tuesday night at 8 p.m. EST on The CW. Watch 'Flash' season 1 episode 15 stream using this free online stream link here.