Season 2 Episode 18 Deathstroke Arrow Season 2 Episode 18 "Deathstroke" Photos 03.20.2014. @ 10:00 ShahbazMalik Official spoiler photos for the highlight anticipated Arrow season 2, episode 18 "Deathstroke" have finally emerged! Check them out below. Warning, their not very Deathstroke heavy. image gallery View: thumbs list Source: CW Get the full spoiler scoop on the episode here.