In season six, after an explosive battle on Lian Yu, Oliver must balance being a vigilante, the mayor, and a father to his son William. At the same time, new enemies emerge, initially led by hacker Cayden James, who puts together a team with drug dealer Ricardo Diaz, metahuman vigilante Vincent Sobel, Russian mobster Anatoli Knyazev, and Black Siren. As James loses control of his cabal, Ricardo Diaz comes to the fore, announcing to Green Arrow his scheme to take over Star City's criminal underworld and control the city's political infrastructure, all while Oliver must contend with his allies forming a rival team.