ERNIE HUDSON (“GHOSTBUSTERS”) GUEST STARS — After the Ninth Circle delivers a major setback for Team Arrow, Diggle (David Ramsey) reluctantly reaches out to a Four-Star General of the Defense Intelligence Agency (guest star Ernie Hudson) for help, despite unresolved tension from their past. Meanwhile, Oliver (Stephen Amell) discovers a piece of information that he believes will turn Emiko (Sea Shimooka) against the Ninth Circle. Alena (guest star Kacey Rohl) returns with an interesting proposal for Felicity (Emily Bett Rickards).
“BIRDS OF PREY”; CAITY LOTZ GUEST STARS — After being accused of murder and having her criminal past exposed, Laurel (Katie Cassidy) goes full Black Siren and teams up with an old criminal acquaintance, Shadow Thief (guest star Carmel Amit), to go on a crime spree around Star City. While Dinah (Juliana Harkavy) aims to bring Laurel in, Felicity (Emily Bett Rickards) refuses to give up on her friend and tries everything to get through to her, even summoning Sara Lance (guest star Caity Lotz) for help. However, Laurel rebuffs all her efforts, forcing the former friends to face off against each other.
LAUREL TEAMS UP WITH OLIVER — Laurel (Katie Cassidy) learns about some damaging information that affects Emiko (Sea Shimooka). Always looking to protect his sister, Oliver (Stephen Amell) invites Laurel to help investigate, which makes Felicity (Emily Bett Rickards) happy as her friend is now working with the team. However, when things go awry, Felicity is forced to make a choice between the team and Laurel.