After Molly collapses and experiences a vision of her encounter on the Seraphim, Sam agrees to give her an ultrasound so she can learn more about her mysterious pregnancy. Also, Molly tracks down Kryger and he reveals the disturbing details of his own solo mission that the International Space Exploration Agency (ISEA) is keeping secret.

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

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

As Molly succumbs to the virus, long forgotten memories surface. Also, Julie is confronted with hard choices and the Hybrids seek revenge.

Molly reveals disturbing new details about Shepherd’s death to the GSC, and Lucy makes a powerful move against the humans and hybrids that could have devastating global repercussions.