With the mission in danger of being shut down, the Vista team travels to Washington to testify before Congress. Meanwhile, the Castillo family pursues their lawsuit against Vista. Tom and his daughter Denise work to repair their relationship.

Denise confronts her turbulent upbringing as she paints a portrait of her late mother, revisiting a lifetime of joy and trauma.

Laz attempts to sway an influential reporter who is critical of the Mars program. Aiko and Eitan test a solution to the MAV problem. An incident with Denise forces Tom to reconsider his priorities.