Crossing the Line
For All Mankind - Season 4
A group on Mars takes drastic measures. Margo grapples with a new assignment.
Watch
Crossing the Line
0:00 / 46:00
1080p
Season 4
Episodes
Glasnost
Eight years later, a new mission begins: Capture an asteroid. Aleida and Danielle are still haunted by events from the past.
Have a Nice Sol
New Helios employees arrive on Mars as NASA undergoes major changes.
The Bear Hug
Miles tries to make ends meet. Margo finds herself pulled into a dangerous situation.
House Divided
An accident on Mars strains relationships, while Miles embarks on a risky venture.
Goldilocks
A discovery sends teams across Earth and Mars scrambling for answers.
Leningrad
Unlikely partnerships are formed at a high-stakes international conference.
Crossing the Line
A group on Mars takes drastic measures. Margo grapples with a new assignment.
Legacy
Plans are made with interplanetary ramifications. Ed begins working with an unexpected partner.
Brazil
Things start to go awry just as an important mission approaches a critical juncture.
Perestroika
Tensions on Earth and Mars come to a head.
Catalog
