16 year old Ashlynn Wilkinson, sister to Sam, is a junior in high school that was recently diagnosed with lung cancer. As of now, she only has months maybe weeks to live because her family can't afford treatments. Nate Maloley, one of the biggest, toughest seniors sees her struggle every day and feels terrible, knowing that's his best friends sister. He writes and sends notes to her through her locker so Sam doesn't know they talk, and somehow, it helps her healing process.