The District - Season 4 Episode 1 Jack's Back

Back from his Arizona vacation and determined to get his job back, Jack starts campaigning for being Chief of police, even though it's not an elected position. He chooses not to use the illegal taping card that might get him back in the office in no time for a future use and moves into a poor neighborhood. Meanwhile, Brander decides to go back to the force and teams up with Nancy to investigate Lester Richard's death, for which Temple got arrested. They discover that Maria "Cashmere Brown" Rodriguez was lying, which frees Temple, but doesn't exactly prove he didn't kill Lester vindictively.