Dr. Evram Mintz's post-traumatic stress disorder is continuing to affect his performance aboard the Antares. His ability to perform under pressure becomes critical when Paula Morales has a serious accident in the cargo bay. For Paula, the accident may result in her being unable to pilot the Venus lander. Ajay returns to work at Mission Control. In flashbacks, the source of Mintz's PTSD is explained. Donner's major phobia is revealed during a hospital visit. The old-timers on the visit start a pool as to just how long Donner will stay on his feet. Zoe decides what she is going to do about her pregnancy but complications arise.