After A.R.G.U.S agent Lyla Michaels goes missing, Oliver charters a trip to Russia to help Diggle find her when they learn that she was following a lead on Deadshot's whereabouts. Isabel Rochev learns that Oliver is going to Russia and tags along, believing that he is trying to meet with the international division of Queen Consolidated behind her back. Once there, Oliver and Diggle learn that Lyla is being held in a gulag. Based on their plan, Diggle is arrested and sent to the gulag to rescue Lyla. Once inside, Diggle finds Deadshot in an isolation freezer. The pair is forced to team up to save Lyla and escape. Afterward, Diggle lets Deadshot go for helping him save Lyla in return, Deadshot reveals that he was contracted to kill Diggle's brother by H.I.V.E. In flashbacks, Dr. Ivo reveals to Oliver that the Japanese soldiers were transporting a secret serum that would give soldiers superhuman strength and regenerative capabilities. Later, Sara tricks Oliver into revealing that Shado and Slade are still alive. Oliver is nearly executed, but Sara convinces Ivo to spare him.