Earlier this season when Felicity went onto the dark web again, she was contacted by a young female hacktivist (played by Hannibal's Kacey Rohl) who wanted to meet her idol. During their meeting, the bubbly young woman explained that she's a member of Helix (a supervillain group) and handed Felicity a jump drive containing stolen data from the NSA. Since then, Felicity has used the jump drive to exonerate Diggle, blackmail a Russian telecom executive, and quickly track down the villain(s) of the week.
Of course, nothing comes for free, and Helix will ask Felicity for a favor.
OLIVER SEEKS THE TRUTH — Oliver (Stephen Amell) gets closer to the truth about Prometheus. Meanwhile, Helix refuses to continue helping Felicity (Emily Bett Rickards) until she does a favor for them.
Ken Shane directed the episode written by Beth Schwartz & Sarah Tarkoff.
Based on the characters from DC, ARROW is from Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti (The Flash, Supergirl), Marc Guggenheim (Eli Stone, Percy Jackson: Sea of Monsters), Andrew Kreisberg (The Flash, Supergirl), Wendy Mericle (Desperate Housewives, Eli Stone) and Sarah Schechter (Supergirl, Blindspot).
"Checkmate" episode of Arrow will air Wednesday, March 1 at 8 p.m. ET/PT.