The investigation was conducted / Season 1 Season guide The investigation was conducted: Season 1 32 episodes Premiered Jan 20, 2006 Updated Jul 26, 2026 Spoiler-safe Advertisement Season 1 Episodes Episode Guide 🛡️ SPOILER SHIELD Season 1 Progress Shield All Safe I'm Watching Caught Up Season: Season 1 Last Watched: None (Not started) Episode 1 Episode 2 Episode 3 Episode 4 Episode 5 Episode 6 Episode 7 Episode 8 Episode 9 Episode 10 Episode 11 Episode 12 Episode 13 Episode 14 Episode 15 Episode 16 Episode 17 Episode 18 Episode 19 Episode 20 Episode 21 Episode 22 Episode 23 Episode 24 Episode 25 Episode 26 Episode 27 Episode 28 Episode 29 Episode 30 Episode 31 Episode 32 Future titles & synopses blurred. Tap "Reveal" on any card to peek. Binge Efficiency Engine Season 1: Filler vs. Essential Canon Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests. 9% 91% Mytharc (3): Crucial lore & season climaxes Core (29): Character development & subplots Side Quest (0): Standalone / filler Show All (32) Crucial Mytharc (3) Essential Canon (32) S1·E1 Mytharc Episode 1 Jan 20, 2006 · 40 min S1·E2 Core Episode 2 Jan 27, 2006 · 40 min S1·E3 Core Episode 3 Feb 3, 2006 · 40 min S1·E4 Core Episode 4 Feb 10, 2006 · 40 min S1·E5 Core Episode 5 Feb 17, 2006 · 40 min S1·E6 Core Episode 6 Mar 3, 2006 · 40 min S1·E7 Core Episode 7 Mar 17, 2006 · 40 min S1·E8 Core Episode 8 Mar 24, 2006 · 40 min S1·E9 Core Episode 9 Mar 31, 2006 · 40 min S1·E10 Core Episode 10 Apr 7, 2006 · 40 min S1·E11 Core Episode 11 Apr 14, 2006 · 40 min S1·E12 Core Episode 12 Apr 21, 2006 · 40 min S1·E13 Core Episode 13 May 19, 2006 · 40 min S1·E14 Core Episode 14 May 26, 2006 · 40 min S1·E15 Core Episode 15 Jun 2, 2006 · 40 min S1·E16 Core Episode 16 Jun 9, 2006 · 40 min S1·E17 Core Episode 17 Jun 23, 2006 · 40 min S1·E18 Core Episode 18 Jun 30, 2006 · 40 min S1·E19 Core Episode 19 Sep 15, 2006 · 40 min S1·E20 Core Episode 20 Sep 22, 2006 · 40 min S1·E21 Core Episode 21 Sep 29, 2006 · 40 min S1·E22 Core Episode 22 Oct 6, 2006 · 40 min S1·E23 Core Episode 23 Oct 13, 2006 · 40 min S1·E24 Core Episode 24 Oct 20, 2006 · 40 min S1·E25 Core Episode 25 Oct 27, 2006 · 40 min S1·E26 Core Episode 26 Nov 3, 2006 · 40 min S1·E27 Core Episode 27 Nov 17, 2006 · 40 min S1·E28 Core Episode 28 Nov 24, 2006 · 40 min S1·E29 Core Episode 29 Dec 8, 2006 · 40 min S1·E30 Core Episode 30 Dec 15, 2006 · 40 min S1·E31 Mytharc Episode 31 Dec 22, 2006 · 40 min S1·E32 Mytharc Episode 32 Dec 29, 2006 · 40 min