In the first installment of Not Alone, following a failed mission that results in the death of her partner, astronaut, Angela Marks (Taren Wilson), is questioned by the mysterious, Mr. Grey (Brian Plaideau). Her story doesn't add up, but Mr. Grey knows more than he lets on as well, and the truth about what Angela saw could change the world forever. She's left with a choice, stick to her story or tell the truth and open the world's eyes to the knowledge that we are not alone.