The CW Television Network has released the official synopsis for “Crossing Lines”, the third episode of Arrow‘s current season, and you can check out all the details about it below.
“Crossing Lines” — (8:00-9:00 p.m. ET) (TV-14, LV) (HDTV)
CURTIS GOES UNDERCOVER FOR ARGUS — Still in prison, Oliver (Stephen Amell) faces his biggest challenge yet. Meanwhile, Felicity (Emily Bett Rickards) gets an intriguing offer, and Diggle (David Ramsey) asks Curtis (Echo Kellum) to go undercover for ARGUS. Ben Bray directed the episode written by Emilio Ortega Aldrich & Tonya Kong (#703). Original airdate 10/29/2018.
Arrow airs on Mondays, on The CW.