This time last year, Michael Mosier was an average, active 6-year-old kid. Then in September 2014, Michael was diagnosed with a brain stem tumor. Now, he's fighting it with chemotherapy and radiation. He's also helping raise money for cancer research. Michael and his parents are participating in the Race for Hope on May 3 in Washington and you can help Team Big Hero Michael with a donation or send him positive messages on Facebook. Good luck, Michael!