In 1983, Mason Storm, a Los Angeles police detective working for the LAPD's Internal Affairs Division, investigates a mob meeting that takes place by a pier. He records a shadowy figure who assures the mob they can rely on his political support. Storm is spotted, but escapes. Unaware that he is monitored by corrupt cops, Mason informs his partner, Becker and his friend Lt. O’Malley that he has evidence of corruption. While he goes shopping, a store is robbed, and one of the robbers shoots the clerk. Mason stops them and goes home, intent on celebrating with his wife, Felicia.