In the wake of a policeman's implication in the murder of a Russian mafia boss, long-estranged brothers Frank and Henry Lincoln find themselves strangely reunited. In the midst of the investigation, Frank, a veteran of the SFPD, struggles to protect his vigilante brother and the city by the bay; meanwhile, Henry takes on a secretive mission of his own. When Henry confesses to a crime he did not commit, Frank is forced to call his once-clear motives into question-and suddenly finds that nothing is what it seems.