Tom and the Providence crew must make a choice considering potentially life-threatening consequences, while Matteo wrestles with his past
Laz attempts to sway an influential reporter who is critical of the Mars program, and an incident with Denise forces Tom to reconsider his priorities
Denise confronts her turbulent upbringing as she paints a portrait of her late mother, revisiting a lifetime of joy and trauma
Sadie and Ollie's marriage is tested. Laz works with the engineers as pressure builds to find a solution to the MAV malfunction. Tom and Ellen grow closer.
Kayla and Tom find themselves at odds when faced with a difficult decision. A problem arises with the Mars Ascent Vehicle (MAV) that may jeopardise the crew's safety.
With the mission in danger of being shut down, the Vista team travel to Washington to testify before Congress. Tom and his daughter Denise work on their relationship.
On launch day, Laz Ingram and the Providence crew count down for the first manned mission to Mars