The Six return home from a charitable trip to help rebuild Vanar, and find their own world is in deep trouble. When a cough becomes much more than a common cold, an epidemic sweeps across the world. They have a suspicion of who is behind it all and rush to tell their missing member, unsure if she will even respond to their call.Samantha Roslin has moved on. Putting her past-and the Six-behind her, she takes a position at a startup company in San Francisco...