Sweet Indiana native Amelia is still getting used to the fast-paced, big-city life after moving to New York City to be with her girlfriend, Charlie. She's standing outside the World Trade Center when the air above her cracks and rains debris and chaos upon the streets. Ambitious butch lesbian Charlie is on the ninety-third floor of the South Tower when a jet plows into the tower opposite, its impact shaking the windows. As she urges her reluctant colleagues to the exits, Charlie's first thought is about who is in that shattered building. Charlie's best friend, Lindsey, is smart, stunning, has a rich girlfriend, and a lifestyle to envy when a fireball scorches down the North Tower elevator shaft. In that instant, she becomes just one of the anonymous masses, trapped, scared, and desperately seeking escape. As colleagues and strangers bond, fight, pray, and die around them, all that's left in the darkness is hope. It's what Amelia's best friend, Teri, clings to, back in Valparaiso, Indiana, as she watches the horrifying news of the terrorist attack unfold. The four women discover how everything can change in an instant . . . and what really matters.