Felicity will try to save Ray out of fear that he will end up just like Oliver Queen, said the "Arrow" season 3, episode 15 spoilers.

Showrunner Marc Guggenheim told TV Line that episode 15 of "Arrow" season 3 titled "Nanda Parbat" is going to be a fan favorite.

"It certainly is one of mine," he said. "It's one of those episodes where everything came together very nicely - its got some wonderful character moments, some incredible action, and it's got a final twist that I think people will be talking about for a long time."

Or if not, he added, the twist will certainly set "the table for the remainder of the season."

"Nanda Parbat" will give fans the first look of Ray Palmer's Atom suit. Will it be complete? Ray Palmer has been rushing to finish it to protect the city in the absence of Oliver Queen.

In the next episode, Ra's al Ghul will capture Malcolm Merlyn, also known as The Dark Archer, and drag him to the mountains of Tibet, in his hideout Nanda Parbat.

The synopsis teased episode 15 spoilers for "Arrow" season 3 as it reads: "Malcolm is captured by Ra's al Ghul and taken to Nanda Parbat. Because of his love for Thea, Oliver considers saving Merlyn. Ray is obsessed with finishing his Atom suit so he can save the city but Felicity fears he is heading down the same path as Oliver and tries to pull him out of the lab."

Could this be the end Malcolm Merlyn, thereby setting the table for another showdown between Oliver and Ra's al Ghul?

This particular episode is directed by Gregory Smith and written by Wendy Mericle and Ben Sokolowski.

 Watch out for more "Arrow" season 3, episode 15 spoilers, which will be published here as they come along ahead of the airing date on Wednesday, Feb. 25 on CW Network.