Samantha Gao is an elite Metro operative, dedicated to a better life for citizens of her city and fiercely protective of anyone under her care. She's the best of the best-at least, she used to be. A devastating mission and rumors of corruption within the ranks have left her questioning everything, even herself. Now, she's supposed to protect the very company that might be responsible for the loss of her team. She goes into the assignment ready for anything-except coming face-to-face with the past she walked away from. Working as an engineer at the Greenerhouse branch of the Cornucopia seed colony, Caleb Estes is at the forefront of reclamation efforts slowly bringing the scarred earth back to life. With humanity finally getting their act together and striving to achieve the basics again-food, clean air and water-he has resources at his disposal he never dreamed of. The work is almost enough to keep him from dreams that won't rest. Dreams of his first love. But when Sam walks back into Caleb's life, his dreams are replaced with stark realities about his work and his past. The answers they both seek aren't easily won, but neither is willing to let go of hope this time around. Can they hold on to a second chance at love while fighting to secure humanity's future?