SUPERHEROES 7. 3 0PM, FOX8 In the penultimate episode of season five, prepare for Oliver Queen (Stephen Amell, right) to make some surprise alliances. Arrow’s producers have teased that fans are “not going to believe” who Star City’s saviour in green teams with to defeat this season’s big bad Prometheus. Joining Team Arrow will be Laurel (Katie Cassidy), who returns this episode despite having died in season four. How does that work?