S04E07: Crossing the Line
A group on Mars takes drastic measures. Margo grapples with a new assignment.
Previous Episode 
Season 1
Red Moon
S1E1 / 01 Nov 2019
He Built the Saturn V
S1E2 / 01 Nov 2019
Nixon's Women
S1E3 / 01 Nov 2019
Prime Crew
S1E4 / 08 Nov 2019
Into the Abyss
S1E5 / 15 Nov 2019
Home Again
S1E6 / 22 Nov 2019
Hi Bob
S1E7 / 28 Nov 2019
Rupture
S1E8 / 06 Dec 2019
Bent Bird
S1E9 / 13 Dec 2019
A City Upon a Hill
S1E10 / 20 Dec 2019
Season 2
Every Little Thing
S2E1 / 19 Feb 2021
The Bleeding Edge
S2E2 / 26 Feb 2021
Rules of Engagement
S2E3 / 05 Mar 2021
Pathfinder
S2E4 / 12 Mar 2021
The Weight
S2E5 / 19 Mar 2021
Best-Laid Plans
S2E6 / 26 Mar 2021
Don't Be Cruel
S2E7 / 02 Apr 2021
And Here's to You
S2E8 / 09 Apr 2021
Triage
S2E9 / 16 Apr 2021
The Grey
S2E10 / 23 Apr 2021
Season 3
Polaris
S3E1 / 09 Jun 2022
Game Changer
S3E2 / 16 Jun 2022
All In
S3E3 / 23 Jun 2022
Happy Valley
S3E4 / 30 Jun 2022
Seven Minutes of Terror
S3E5 / 07 Jul 2022
New Eden
S3E6 / 14 Jul 2022
Bring It Down
S3E7 / 21 Jul 2022
The Sands of Ares
S3E8 / 28 Jul 2022
Coming Home
S3E9 / 04 Aug 2022
Stranger in a Strange Land
S3E10 / 11 Aug 2022
Season 4
Glasnost
S4E1 / 09 Nov 2023
Have a Nice Sol
S4E2 / 16 Nov 2023
The Bear Hug
S4E3 / 21 Nov 2023
House Divided
S4E4 / 30 Nov 2023
Goldilocks
S4E5 / 07 Dec 2023
Leningrad
S4E6 / 14 Dec 2023
Crossing the Line
S4E7 / 21 Dec 2023
Legacy
S4E8 / 28 Dec 2023
Brazil
S4E9 / 04 Jan 2024
Perestroika
S4E10 / 11 Jan 2024
Season 5
First Light
S5E1 / 26 Mar 2026
The Hard Six
S5E2 / 02 Apr 2026
Home
S5E3 / 09 Apr 2026
Open Source
S5E4 / 16 Apr 2026
Svoboda
S5E5 / 23 Apr 2026
Toby Kebbell
Miles Dale
Mireille Enos
Celia Boyd
Edi Gathegi
Dev Ayesa
Cynthy Wu
Kelly Baldwin
Coral Peña
Aleida Rosales
Costa Ronin
Leonid 'Lenya' Polivanov
Sean Kaufman
Alex Poletov Baldwin
