Evelyn lives in Hawaii and always had the perfect life. There was wave after wave of happy moments and memories. One day, her wonderful life came to a screeching halt. Her sister Madeline started acting strange and having terrible headaches. After several doctor visits, Madeline was diagnosed with a brain tumor.

Evelyn's life shattered. There was no cure coming for her sister; she would have to say goodbye. Evelyn must learn to savor every moment she has with Madeline. When the time comes, she has to learn to process her grief in waves, learning to smile at the memory of Madeline instead of holding on to the sadness. It's what her sister would want, right? Of course, this is easier said than done. Evelyn leans hard into surfing to help her ease the pain, letting every wave help her find the balance of love, loss, grief, and learning to be happy again.