• "Arrow" Season 4 Episode 7 is "Diggle-centric."

"Arrow" Season 4 Episode 7 is "Diggle-centric." (Photo : Twitter/@laprensaperu)

John Diggle is set to find out the truth in "Arrow" Season 4 Episode 7.

"Arrow" Season 4 Episode 7 is entitled "Brotherhood." According to Latin Post, Episode 7 would see Diggle learn that his brother Andy Diggle was still alive; however, Andy was manipulated by the big bad Damien Darhk.

Like Us on Facebook

An extended promo video on "Brotherhood" was also released online. In the video, it has been revealed that Andy faked his death and has become part of Darhk's crew. Further sequences also showed Oliver Queen and John plan a mission to rescue and save Andy.

"Arrow" Season 4 Episode 7 is also set to be "Diggle-centric," stunt guru and Episode 7 director James Bamford, told TV Line. Bamford explained that "Brotherhood" explored deeper Andy's story arc through flashbacks, which gives fans the answers to their questions, since the start of Season 1. According to Bamford, Episode 7 would also see Diggle to find out the truth about his beloved brother with passion.

In "Arrow" Season 4 Episode 6, entitled "Lost Souls," Queen worked on his campaign while Felicity Smoak continued looking for Ray Palmer with the assistance of Curtis Holt. Palmer was able to send Smoak a message, informing the latter that he had survived the explosion because his suit had allowed him to change his size to the size of a pea.

Palmer added that he was being held as captive and he was in search for something that could return him to his normal size. In his second message, Smoak discovered that Palmer was captured by Darhk, as the latter wanted to obtain the tech.  Darhk also threatened that he would hurt Smoak if Palmer denied to give the technology.

Meanwhile, the team hunted down Sarhk to his hideout and successfully rescued Palmer. Sara also had trouble with the bloodlust and opted to leave Star City to have control. The flashback scenes showed Reiter send Queen on a mission of finding another ancient ruin that would give a gift to the former.

"Arrow" Season 4 Episode 7, "Brotherhood," airs Nov. 18.

Watch the extended promo video here: