Diggle and Felicity travel to Lian Yu in search of Oliver who left Starling City after The Undertaking. Convinced to return home, Oliver finds that things are in worse shape than he thought - Isabel Rochev is preparing a hostile takeover of Queen Consolidated, Thea refuses to visit Moira in jail, Roy is trying to fill the void left by the Arrow's absence, and Laurel is working with the District Attorney's office to take down the vigilante. Meanwhile, flashbacks to the island show Slade, Shado and Oliver in a desperate situation.
