John begins to doubt Molly's mental state when the validity of her pregnancy is questioned. Meanwhile, Ethan suffers a serious setback, and John and Julie disagree over how to care for him.

John makes a discovery about Yasumoto as Molly gets closer to locating her offspring; Sparks' visions of his daughter persist.

Six months after her life unraveled and dark secrets were revealed, Molly is confined to a psychiatric hospital when she learns of bizarre deaths that sound eerily similar to those she witnessed in space. When she escapes to investigate, she crosses paths with JD Richter, a determined cop who just signed on to the case.

Molly finally learns the frightening truth about what happened to her son. Also, Julie’s decision to erase Ethan’s memory has disturbing consequences.

Following a near-death experience, Molly has a harrowing vision she can’t shake. Also, Shepherd's loyalty to the Global Space Commission is called into question.