The CW Television Network has released the official synopsis for “The Demon” the fifth episode of Arrow‘s current season and you can check it out below.
“The Demon” — (8:00-9:00 p.m. ET) (TV-14, LV) (HDTV)
FELICTY DISCOVERS A SECRET ABOUT OLIVER; CURTIS GOES UNDERCOVER — Felicity (Emily Bett Rickards) learns something new about Oliver (Stephen Amell) that shocks her. Meanwhile, Diggle (David Ramsey) asks Curtis (Echo Kellum) to go undercover for ARGUS. Dinah (Juliana Harkavy) works with an unlikely ally. Mark Bunting directed the episode written by Benjamin Raab & Deric A. Hughes (#705). Original airdate 11/12/2018.
Arrow airs on Mondays, on The CW.