Reunited with his sister, Oliver and Thea find themselves searching through a familiar maze of catacombs. Meanwhile, John and Lyla partner on a special ops mission.

Oliver, John, Laurel, and Tatsu seek out an important person within the Monitor’s plan. Connor has a heart to heart with his brother.

Oliver returns to Starling City on Earth-2, where he encounters familiar faces while trying to decipher the Monitor’s mission. Meanwhile, Mia and William’s team clash with a new foe.

After the Ninth Circle delivers a major setback for Team Arrow, Diggle reluctantly reaches out to a Four-Star General of the Defense Intelligence Agency for help, despite unresolved tension from…

To soothe heartache, Joe turns to ancient remedies, modern technology and drinking with Delilah. But one small slip-up could have major consequences.

Joe performs surveillance on a potential problem, but suspects someone might be tailing him, too. Painful memories put Love on edge about the present.

Love brings Joe to a wellness weekend, where he gets a good look at her family’s dynamic. But Forty’s surprise guest has him feeling anything but zen.

As he tries to adapt to sharing Love with Forty, Joe is caught off guard by a group date — while his protectiveness of Ellie quickly escalates.

Joe attempts to keep things platonic with Love and keep his nose out of Ellie’s business. But his instincts soon get the better of him.

Joe realizes Will Bettelheim isn’t all he’s cracked up to be. The fallout threatens to get in the way of his burgeoning connection with Love.