Arrow › Season 5 › Episode 20
Arrow Season 5 Episode 20“Underneath”
The CW · S5E20 · Aired May 3, 2017 · 60 min · ★ 6.7/10
Oliver and Felicity are trapped in the bunker after Adrian seals the doors and sets off an EMP bomb. While they try to get to the surface after Oliver is badly injured, their teammates try to find a way to help them.
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