'Arrow' season 4 episode 6 spoilers: Ray captured by Darhk; Team Arrow searches for him in 'Lost Souls'

Arrow/Facebook

Last week's episode of "Arrow" season 4 featured John Constantine, who hasn't lost his flair in the field of the dark arts and the use of black magic as he brought Sara's soul back to her body. This week, the theme continues as the show also gradually sets up the spinoff "Legends of Tomorrow."

The next installment is titled "Lost Souls." Here, the whole team finds out that Ray is alive. The nanotechnology he was using before the explosion in the season 3 finale apparently made him smaller in size. But a certain evil still did not fail to find and seize him.

The group sets out to find Ray but as Laurel says, it won't be easy. "It's like finding a needle in the city," she says in the sneak peek. However, from the looks of it, Ray somehow manages to transmit video messages to Felicity and the team from where he is being held.

As seen in the "Arrow" season 4 promo, Ray is captured by Damien Darhk and Felicity is anxious knowing that he is in the clutches of the most powerful villain in Star City. She also feels pangs of guilt for not listening to Ray's message early, which strains her and Oliver's bond in this episode.

In the same "Arrow" season 4 episode, Felicity's mom Donna Smoak makes her way back to Star City. Her presence should help Felicity cope up with everything that's happening and help her eliminate the guilt she is feeling.

Meanwhile, thanks to Constantine, Sara is ready to get back in the field. She joins Thea and Laurel as they go about the mission of locating Ray. Apart from the fact that the team is running against the clock, sadly, the effects of the Lazarus Pit creep back and this lays the whole mission on the line.

"Arrow" season 4 episode 6 "Lost Souls" airs Nov. 11 at 8 p.m. ET on The CW.