Astronaut Molly Woods tries to reconnect with her husband, John, and son, Ethan, after returning from a 13-month solo mission in outer space.

However, despite being told by doctors she’s infertile, Molly’s shocked to find out she’s somehow fallen pregnant - despite being completely alone for over a year. Struggling to come to terms with the implications of this news, Molly begins to question her own recollections and digs deep into the guarded mission data. Expect big themes and even bigger questions to arise as the series progresses. Was she really alone in space? And if not, who – or what - exactly was up there with her?