In season three, a series of explosions rock Kingstown and its citizens, as a new face of the Russian mob sets up shop in the city, and a drug war rages inside and outside prison walls. The pressure is on Mike McLusky to end the war but things get complicated when a familiar face from his incarcerated past threatens to undermine the Mayor's attempts to keep the peace among all factions.

• Jeremy Renner
• Hugh Dillon
• Tobi Bamtefa
• Taylor Handley
• Emma Laird
• Derek Webster
• Hamish Allan-Headley
• Nishi Munshi