Heroes will be forged. And sacrifices will be made.
So teases The CW in its official synopsis for next week's Arrow Season 1 finale, as Oliver and Diggle race to stop The Dark Archer from unleashing his wrath on The Glades.
Elsewhere, Tommy's friendship with Oliver will take a turn for the worse, while Thea goes off in search of Roy and Oliver gets locked in a struggle with Slade and Shado on the island.
Check out Arrow photos from the finale now and then watch the following promo for "Sacrifice."