The Lost National Treasure / Season 1 Season guide The Lost National Treasure: Season 1 36 episodes Premiered May 20, 2025 Updated Jul 24, 2026 Spoiler-safe Advertisement Episodes S1·E1 Episode 1 May 20, 2025 · 45 min S1·E2 Episode 2 May 20, 2025 · 45 min S1·E3 Episode 3 May 20, 2025 · 45 min S1·E4 Episode 4 May 20, 2025 · 45 min S1·E5 Episode 5 May 21, 2025 · 45 min S1·E6 Episode 6 May 21, 2025 · 45 min S1·E7 Episode 7 May 22, 2025 · 45 min S1·E8 Episode 8 May 22, 2025 · 45 min S1·E9 Episode 9 May 26, 2025 · 45 min S1·E10 Episode 10 May 26, 2025 · 45 min S1·E11 Episode 11 May 27, 2025 · 45 min S1·E12 Episode 12 May 27, 2025 · 45 min S1·E13 Episode 13 May 28, 2025 · 45 min S1·E14 Episode 14 May 28, 2025 · 45 min S1·E15 Episode 15 May 29, 2025 · 45 min S1·E16 Episode 16 May 29, 2025 · 45 min S1·E17 Episode 17 Jun 2, 2025 · 45 min S1·E18 Episode 18 Jun 2, 2025 · 45 min S1·E19 Episode 19 Jun 3, 2025 · 45 min S1·E20 Episode 20 Jun 3, 2025 · 45 min S1·E21 Episode 21 Jun 4, 2025 · 45 min S1·E22 Episode 22 Jun 4, 2025 · 45 min S1·E23 Episode 23 Jun 5, 2025 · 45 min S1·E24 Episode 24 Jun 5, 2025 · 45 min S1·E25 Episode 25 Jun 6, 2025 · 45 min S1·E26 Episode 26 Jun 6, 2025 · 45 min S1·E27 Episode 27 Jun 9, 2025 · 45 min S1·E28 Episode 28 Jun 9, 2025 · 45 min S1·E29 Episode 29 Jun 10, 2025 · 45 min S1·E30 Episode 30 Jun 10, 2025 · 45 min S1·E31 Episode 31 Jun 11, 2025 · 45 min S1·E32 Episode 32 Jun 11, 2025 · 45 min S1·E33 Episode 33 Jun 12, 2025 · 45 min S1·E34 Episode 34 Jun 12, 2025 · 45 min S1·E35 Episode 35 Jun 13, 2025 · 45 min S1·E36 Episode 36 Jun 13, 2025 · 45 min