Garrett Black

Will Scarlet and Anastasia pass into Wonderland only to discover it isn't what they imagined; the Red Queen gains her royal status.

Oliver decides it's time for Thea to return home to Starling City so he packs for Corto Maltese where Felicity has traced Thea's whereabouts. Lyla (guest star Audrey Marie Anderson) asks Diggle to go with Oliver because one of her field operatives Mark Shaw (guest star David Cubitt) has gone dark in Corto Maltese and she'd like him to look into it. Feeling responsible for Thea's departure Roy joins Oliver and Diggle on their journey. Shaw double-crosses Diggle putting numerous A.R.G.U.S. agents including Lyla at risk. Meanwhile Laurel meets Ted Grant (recurring guest star J.R. Ramirez) and Felicity adjusts to her new job.

After the dramatic events at the baseball game, Jack and Olivia resolve to spend more time together while Olivia makes sure to set Liz straight about her relationship status. Meanwhile, Grace tries to convince Cliff to elope and Maryellen turns to her friends to help cope with her mother's nuptials. Then, Jack shows up to defend Jeri in a meeting with David, the owner of the Seattle Courier, but just when Jack is prepared to lose his job, he finds out David has something else in mind.

A key witness in a drug investigation is found dead after escaping from his court-mandated rehab program, and Backstrom must figure out how he escaped and who killed him. However, when the S.C.U. learns that the victim is member of a band and all his bandmates dislike him, they start to believe that the killer may be someone closer than they expected. Meanwhile, Backstrom has reason to believe that Valentine may be more than just his tenant.