Advances in precision medicine and personalized care include changes in how we deliver treatment for cancer. Meet a 24-year-old woman being treated for brain cancer and follow her as she becomes the first patient to receive radiation treatment at the newly opened Proton Therapy Center at University Hospitals Seidman Cancer Center in Cleveland, Ohio. Then, learn about the dramatic benefits of proton therapy for young patients, who often are at risk for serious long-term side effects from traditional radiation therapy, and see the fascinating evolution of proton therapy machines.