Old Boy / Season 1 Season guide Old Boy: Season 1 47 episodes Premiered Mar 4, 2018 Updated Aug 29, 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 Episode 33 Episode 34 Episode 35 Episode 36 Episode 37 Episode 38 Episode 39 Episode 40 Episode 41 Episode 42 Episode 43 Episode 44 Episode 45 Episode 46 Episode 47 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. 94% Mytharc (3): Crucial lore & season climaxes Core (44): Character development & subplots Side Quest (0): Standalone / filler Show All (47) Crucial Mytharc (3) Essential Canon (47) S1·E1 Mytharc Episode 1 Mar 4, 2018 · 45 min S1·E2 Core Episode 2 Mar 4, 2018 · 45 min S1·E3 Core Episode 3 Mar 5, 2018 · 45 min S1·E4 Core Episode 4 Mar 5, 2018 · 45 min S1·E5 Core Episode 5 Mar 6, 2018 · 45 min S1·E6 Core Episode 6 Mar 6, 2018 · 45 min S1·E7 Core Episode 7 Mar 7, 2018 · 45 min S1·E8 Core Episode 8 Mar 7, 2018 · 45 min S1·E9 Core Episode 9 Mar 8, 2018 · 45 min S1·E10 Core Episode 10 Mar 8, 2018 · 45 min S1·E11 Core Episode 11 Mar 9, 2018 · 45 min S1·E12 Core Episode 12 Mar 10, 2018 · 45 min S1·E13 Core Episode 13 Mar 11, 2018 · 45 min S1·E14 Core Episode 14 Mar 11, 2018 · 45 min S1·E15 Core Episode 15 Mar 12, 2018 · 45 min S1·E16 Core Episode 16 Mar 12, 2018 · 45 min S1·E17 Core Episode 17 Mar 13, 2018 · 45 min S1·E18 Core Episode 18 Mar 13, 2018 · 45 min S1·E19 Core Episode 19 Mar 14, 2018 · 45 min S1·E20 Core Episode 20 Mar 14, 2018 · 45 min S1·E21 Core Episode 21 Mar 15, 2018 · 45 min S1·E22 Core Episode 22 Mar 15, 2018 · 45 min S1·E23 Core Episode 23 Mar 16, 2018 · 45 min S1·E24 Core Episode 24 Mar 18, 2018 · 45 min S1·E25 Core Episode 25 Mar 18, 2018 · 45 min S1·E26 Core Episode 26 Mar 19, 2018 · 45 min S1·E27 Core Episode 27 Mar 19, 2018 · 45 min S1·E28 Core Episode 28 Mar 20, 2018 · 45 min S1·E29 Core Episode 29 Mar 20, 2018 · 45 min S1·E30 Core Episode 30 Mar 21, 2018 · 45 min S1·E31 Core Episode 31 Mar 21, 2018 · 45 min S1·E32 Core Episode 32 Mar 22, 2018 · 45 min S1·E33 Core Episode 33 Mar 22, 2018 · 45 min S1·E34 Core Episode 34 Mar 23, 2018 · 45 min S1·E35 Core Episode 35 Mar 24, 2018 · 45 min S1·E36 Core Episode 36 Mar 25, 2018 · 45 min S1·E37 Core Episode 37 Mar 25, 2018 · 45 min S1·E38 Core Episode 38 Mar 26, 2018 · 45 min S1·E39 Core Episode 39 Mar 26, 2018 · 45 min S1·E40 Core Episode 40 Mar 27, 2018 · 45 min S1·E41 Core Episode 41 Mar 27, 2018 · 45 min S1·E42 Core Episode 42 Mar 28, 2018 · 45 min S1·E43 Core Episode 43 Mar 28, 2018 · 45 min S1·E44 Core Episode 44 Mar 29, 2018 · 45 min S1·E45 Core Episode 45 Mar 29, 2018 · 45 min S1·E46 Mytharc Episode 46 Mar 30, 2018 · 45 min S1·E47 Mytharc Episode 47 Mar 31, 2018 · 45 min Advertisement