This ensemble drama weaves together the stories of a teen who gets into a serious car accident, the teen's family and girlfriend, the staff at a hospital, and a middle-aged woman who needs a heart transplant.

In a future world where those between the ages of thirteen and eighteen can have their lives "unwound" and their body parts harvested for use by others, three teens go to extreme lengths to survive until they turn eighteen.

"Dr. Briana Ortiz's life is seriously flatlining. Her divorce is just about finalized, her brother's running out of time to find a kidney donor, and that promotion she wants? Oh, that's probably going to the new man--doctor who's already registering eighty-friggin'-seven on Briana's 'pain in my ass' scale. But just when all systems are set to hate, Dr. Jacob Maddox completely flips the game . . . by sending Briana a letter. And it's a really good...

Seventeen-year-old Chloe had a plan: work hard, get good grades, and attend a top-tier college. But after she collapses during cross-country practice and is told that she needs a new heart, all her careful preparations are laid to waste. Eight months after her transplant, everything is different. Stuck in summer school with the underachievers, all she wants to do now is grab her surfboard and hit the waves---which is strange, because she wasn't interested...