On the Border / Season 4 Season guide On the Border: Season 4 16 episodes Premiered Apr 25, 2021 Updated Jul 20, 2026 Spoiler-safe Advertisement Episodes S4·E1 Episode 1 Apr 25, 2021 · 70 min S4·E2 Episode 2 May 2, 2021 · 70 min S4·E3 Episode 3 May 9, 2021 · 70 min S4·E4 Episode 4 May 16, 2021 · 70 min S4·E5 Episode 5 May 23, 2021 · 70 min S4·E6 Episode 6 May 30, 2021 · 70 min S4·E7 Episode 7 Jun 6, 2021 · 70 min S4·E8 Episode 8 Jun 13, 2021 · 70 min S4·E9 Episode 9 Jun 20, 2021 · 70 min S4·E10 Episode 10 Jun 27, 2021 · 70 min S4·E11 Episode 11 Jul 4, 2021 · 70 min S4·E12 Episode 12 Jul 11, 2021 · 70 min S4·E13 Episode 13 Jul 18, 2021 · 70 min S4·E14 Episode 14 Jul 25, 2021 · 70 min S4·E15 Episode 15 Aug 1, 2021 · 70 min S4·E16 Episode 16 Aug 8, 2021 · 70 min