When his younger brother is diagnosed with leukemia, thirteen-year-old Steven tries to deal with his complicated emotions, his school life, and his desire to support his family.

Private Investigator Bay Tanner is hired by a young mother desperate to locate her estranged family. Joline Eastman's daughter is dying of leukemia, and all other sources for a bone-marrow transplant have been exhausted. A yellowing photograph and a handful of wartime letters are the only clues she has to offer. But it's what she's not willing to share that may hold the ultimate solution to saving her daughter's life. Meanwhile, Bay has her own family...

During the summer her grandfather is dying of leukemia and death seems all around, 15-year-old Vicky finds comfort with the pod of dolphins with which she has been doing research.

Amidst the anticipation of Mr. B and Aunt Penny's wedding, the Vanderbeekers' lives take an unexpected turn as Laney receives a dire diagnosis, leading them to the hospital where, despite their own challenges, they form a bond with a critically ill new friend in need of their support.