First Department / Season 1 Season guide First Department: Season 1 20 episodes Premiered Nov 16, 2020 Updated Jul 21, 2026 Spoiler-safe Advertisement Episodes S1·E1 Episode 1 Nov 16, 2020 · 48 min S1·E2 Episode 2 Nov 16, 2020 · 48 min S1·E3 Episode 3 Nov 17, 2020 · 48 min S1·E4 Episode 4 Nov 17, 2020 · 48 min S1·E5 Episode 5 Nov 18, 2020 · 48 min S1·E6 Episode 6 Nov 18, 2020 · 48 min S1·E7 Episode 7 Nov 19, 2020 · 48 min S1·E8 Episode 8 Nov 19, 2020 · 48 min S1·E9 Episode 9 Nov 20, 2020 · 48 min S1·E10 Episode 10 Nov 20, 2020 · 48 min S1·E11 Episode 11 Nov 23, 2020 · 48 min S1·E12 Episode 12 Nov 23, 2020 · 48 min S1·E13 Episode 13 Nov 24, 2020 · 48 min S1·E14 Episode 14 Nov 24, 2020 · 48 min S1·E15 Episode 15 Nov 25, 2020 · 48 min S1·E16 Episode 16 Nov 25, 2020 · 48 min S1·E17 Episode 17 Nov 26, 2020 · 48 min S1·E18 Episode 18 Nov 26, 2020 · 48 min S1·E19 Episode 19 Nov 27, 2020 · 48 min S1·E20 Episode 20 Nov 27, 2020 · 48 min