An entire season of murder and mayhem all comes down to the “Arrow” Season 2 finale, “Unthinkable.” Both the poster for that episode and the trailer video show that this may be epic.

Will Oliver Queen have to kill Slade Wilson? Or will Oliver and his friends face being killed by the mirakuru army?

While the fight is very much on in the trailer, it is not at all clear which side may be coming out on top. Brief glimpses of Deadshot, the League of Assassins and a crying Felicity only enhance the tension seen in the clips. It really does look like Oliver might have to decide that it’s time to start killing again.

What other choice does he have?

A poster for the finale echoes that same sentiment. It shows the faces of both Oliver and Slade, with a caption that reads: “His city burns. Will he fight fire with fire?”

Oliver’s choices will only become clear when the Season 2 finale, “Unthinkable” airs Wednesday, May 14 at 8 p.m. ET/PT on The CW.

Posted by:Laurel Brown