spoilers ahead. If your goal is the essential material that resolves the central mystery, focus on these episodes: 1) Pilot — introduces the detective protagonist, the triggering crime, and the first indication of a hidden network working inside the district. 3) “Ledger and Lantern” — reveals the first concrete link between prominent citizens and the illegal trade that underpins 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 turning point where the protagonist is forced to choose between public exposure and private revenge; this episode explains how certain 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.