Arrow season 5 finale extended trailer May 21, 2017 The Taylor Network no comment on Arrow season 5 finale extended trailer Lian Yu synopsis: Oliver assembles a group of unlikely allies – Slade, Nyssa, Merlyn and Digger Harkness – to engage in an epic battle against Chase and his army. Airing Wednesday 5/21 at 8 p.m. ET/PT on The CW Share this:TwitterFacebookLinkedInPinterestRedditTumblrLike this:Like Loading...