'Arrow' season 4 episode 6 spoilers: Oliver blames Felicity over Ray's predicament

Felicity and Oliver will fight in the upcoming episode of "Arrow." Facebook/CW

Tension will rise between Felicity (Emily Bett Rickards) and Oliver (Stephen Amell) in the upcoming episode of the hit The CW series "Arrow."

In "Lost Souls," Comicbook reports that Ray (guest star Brandon Routh) is still alive and that Damien (guest star Neal McDonough) is holding him captive. Team Arrow saw him die in a fiery explosion, but as there was no body to bury, some still hoped that he was alive. When Felicity finally learns the truth, she will be horrified that she has not searched for him sooner. It does not help that Oliver is blaming her over Ray's quandary, as they both know that every minute counts if they still want to see him alive.

Last episode, Felicity and her friend Curtis (Echo Kellum) discovered something they have not heard before in the audio recording Ray left behind. This somehow gave hope that Ray may not be dead and that he's being held somewhere. True enough, the city's resident crime boss has him. Rescuing Ray will prove to be difficult, but the team will immediately decide to go on offensive. This time, Sara (guest star Caity Lotz) will be joining Laurel (Katie Cassidy) and Thea (Willa Holland) in the operation.

Sara was cured of her blood lust last week, thanks to Oliver's newfound friend Constantine (Matt Ryan). As payment for his help in securing a scepter on the island of Lian Yu, Constantine was eager to return the favor to Oliver. They performed a ritual that sent them to a dimension where Sara's soul was being caged. After defeating the demon who was guarding her, they were able to bring her back to Star City.

The synopsis reveals that even though things are looking better for Team Arrow as they prepare for their rescue mission, the effects of the Lazarus Pit will once again be felt by those who was brought to life because of it. Thea has told Oliver that the only reason she has not been feeling any blood lust is that she already killed two men. This time, though, it appears there is no getting away from the urge to kill. Will Thea jeopardize the mission? And what about Sara? Is she totally healed?

"Arrow" airs Wednesdays at 8 p.m. EST on The CW.

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