Tropical storm Hilary slams California with catastrophic and potentially “life-threatening” flooding – Dylan Dreyer tracks what’s next for the storm. Plus, Dr. Natalie Azar has what you need to know about a case of locally acquired malaria in Maryland. Also, NBC’s Kaylee Hartung shares the story of a dad’s diagnosis with a rare genetic disease that saved his life. And, TODAY in the wild: how endangered koalas are getting a much needed helping hand.