Some of the crew still harbor ill-feelings over being kept in the dark about the Beta object and the true purpose of their mission. Donner fears that they are re-creating the events that led to the disaster on Mars 10 years before and in flashbacks, more of what happened there is revealed. Donner is convinced that he should pilot the Venus lander, but Paula only has to complete her final simulated runs to get clearance to land. Nadia is seriously questioning why they are there. Jen Crane still isn't on speaking terms with her husband Rollie but finally admits that she can't see the Beta object. Rollie is distracted by their spat, leading to a serious accident.

The Antares arrives at Venus and Zoe and Donner prepare to travel down to the planet on the landing craft, the Crossbow. With only 20 minutes to collect the Gamma object and return, the mission may have to be aborted when the Crossbow lands too far from the planned landing site. At Mission Control, Rollie is still upset over the accident. Journalist Trevor Williams keeps working on Arnel Poe to reveal what he knows about the Venus mission. Claire sends Evram Mintz the information she has on the transformation the crew is undergoing. In flashbacks, the final 20 candidates for astronaut training are revealed and the list doesn't include one of the current crew members.