Which enemy did Oliver align with?
That was revealed on Arrow Season 7 Episode 2 when he realized he had to track down Diaz before a member of his family was killed off.
Meanwhile, Felicity continued her own plan to get the villain out of hiding, but Diggle stepped in because of his new role at ARGUS.
The genius then realized that her old team was never going to help her out, so she had to change the game on her own.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.