Watch Arrow Season 4 Episode 18 online, Stream Arrow 4×18 online, Watch Arrow s4e18 online streaming free.
Description by couchtuner for : Oliver and Diggle learn that Merlyn is going to try to break Darhk out of prison. Meanwhile, Laurel gets a surprising offer and Felicity has a heart-to-heart talk with Curtis.
Watch It Here : Arrow Season 4 Episode 18 Eleven-Fifty-Nine