In the opening episode, we are thrown head first into the world of SIU. Jimmy Blue, lead detective, Yolanda Rodriguez and the team's computer specialist, Tessa is brought in to solve a gruesome case of decapitation. With no time to waist and the body count rising, they dive into the clues in a desperate search for the killer. If this were not enough, Internal Affairs is circling around Jimmy and his former partner Darius, accusing them of being dirty cops, asking questions about a dead cop and a missing bag of Albanian mob money. As the personal lives of the team slowly come apart the Detectives have to overcome multiple obstacles to solve the case before the killer can claim another victim.

A nun has been murdered, a community shattered and everyone's faith in humanity is put to the test. The case pushes the team to their limits, as community outrage begins to rise. Yolanda finds herself questioning her path in life as her inner demons come calling, threatening to reveal a dark secret. Jimmy is haunted by his memories of war. Darius has his loyalties tested as Internal Affairs intensifies their pressure.

A new detective, Tarik, joins the team after lending a hand in their last case. The Mayor's son is missing and SIU is brought in to solve the case quietly and quickly. Clues lead to an underground gambling ring and an elite criminal organization, The Dragon's Shadow. Jimmy calls on an old friend, Han, high within the Dragon's Shadow organization to help with the case. Tarik learns that the world of SIU is not so simple and Yolanda goes missing.