Where can I watch Gun in United States?

The Detroit Police launches a full-scale war against gun runners with the cooperation of the Feds and target a criminal named Rich. When a gun exchange goes bad and Rich’s old friend Angel, steps up big time and saves his life, they form a bond that makes his supplier and lover, Gabriella paranoid. But there is a snitch in the group and Gabriella’s biggest deal goes bad only to have an even bigger secret revealed, one that rocks Rich to his core.