1) Pilot — establishes the detective lead, the first crime that launches the plot, and the earliest sign of a hidden network in the district. 3) “Ledger and Lantern” — provides the first solid connection between influential citizens and the illegal trade beneath the conspiracy. 5) “Midnight Conferral” — features a major betrayal, exposes a false ally, and places several clues about the mastermind’s motive on the table. 8) “The Foundry” — a major turning point in which the protagonist must choose between public exposure and personal revenge; it explains how several crimes were staged. 10) Season finale — ties the threads together, names the central antagonist, and shows the immediate consequences for main characters. Watching these will give you a coherent picture of the central plot, though several character moments and emotional payoffs are spread across other episodes.