Episode 18: Deathstroke
It looks like the gnarly thorn in our hero's side is going to be wedged there for a while...
Slade makes his move and, while Oliver does everything in his power to protect his family, a key member of Team Arrow starts to question his decision-making.
And the sharp-shooter's world further crumbles when Isabel (returning guest star Summer Glau) poaches Queen Consolidated.
Watch Stephen Amell talk about making our Season Two promo.
Here are 10 Reasons why you should be watching Arrow.