Arrow - Full Series Information, Trailer & IMDb Reviews
Watch Arrow Season 4 Episode 1 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.
Season 4 begins with assassins, led by the evil Damien Darhk, attacking Star City. Oliver quickly returns from a blissful getaway with Felicity to defend the city, but Diggle makes it clear that he doesn't want Oliver on the team.