Aktenzeichen XY… ungelöst / Season 1 Season guide Aktenzeichen XY… ungelöst: Season 1 12 episodes Premiered Oct 20, 1967 Updated Jul 21, 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 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. 25% 75% Mytharc (3): Crucial lore & season climaxes Core (9): Character development & subplots Side Quest (0): Standalone / filler Show All (12) Crucial Mytharc (3) Essential Canon (12) S1·E1 Mytharc Episode 1 Oct 20, 1967 · 90 min S1·E2 Core Episode 2 Nov 24, 1967 · 90 min S1·E3 Core Episode 3 Jan 19, 1968 · 90 min S1·E4 Core Episode 4 Mar 15, 1968 · 90 min S1·E5 Core Episode 5 Apr 19, 1968 · 90 min S1·E6 Core Episode 6 Jun 7, 1968 · 90 min S1·E7 Core Episode 7 Jul 5, 1968 · 90 min S1·E8 Core Episode 8 Aug 2, 1968 · 90 min S1·E9 Core Episode 9 Sep 13, 1968 · 90 min S1·E10 Core Episode 10 Oct 25, 1968 · 90 min S1·E11 Mytharc Episode 11 Nov 29, 1968 · 90 min S1·E12 Mytharc Episode 12 Dec 20, 1968 · 90 min Advertisement