Natural Selection

En route to Venus, the first of six planets to be visited on the mission, Zoe faces a deadly situation when she is testing a pressure suit and it begins to lose pressure. In flashbacks, we learn how Zoe dealt with the news she was pregnant and the identity of the father. Nadia wonders just why Steven is on the mission in the first place. From ground control, Eve Shaw tells he pilot husband Ted he has to go to Pod #4.