Sydney's charismatic older brother, Peyton, has always been the center of attention in the family but when he is sent to jail, Sydney struggles to find her place at home and the world until she meets the Chathams, including gentle, protective Mac, who makes her feel seen for the first time.

Sixteen-year-old Hazel, a stage IV thyroid cancer patient, has accepted her terminal diagnosis until a chance meeting with a boy at cancer support group forces her to reexamine her perspective on love, loss, and life. Despite the tumor-shrinking medical miracle that has bought her a few years, Hazel has never been anything but terminal, her final chapter inscribed upon diagnosis. But when a gorgeous plot twist named Augustus Waters suddenly appears...

Dino and July, seventeen, are granted time to resolve what was left unfinished between them after July's sudden death, one year after their friendship ended over Dino's new relationship.