Season 4

Eight years later, a new mission begins: Capture an asteroid. Aleida and Danielle are still haunted by events from the past.

New Helios employees arrive on Mars as NASA undergoes major changes.

Miles tries to make ends meet. Margo finds herself pulled into a dangerous situation.

An accident on Mars strains relationships, while Miles embarks on a risky venture.

Unlikely partnerships are formed at a high-stakes international conference.

A group on Mars takes drastic measures. Margo grapples with a new assignment.

Plans are made with interplanetary ramifications. Ed begins working with an unexpected partner.

Things start to go awry just as an important mission approaches a critical juncture.