Michelle Gentis and her son, Joshua, dream of completing a goal many distance runners share — finishing all six races that make up the Abbott World Marathon Majors.
Crossing the finish line in Tokyo, Boston, London, Berlin, New York and Chicago is a remarkable achievement for any runner, but, for Michelle and Joshua, there's an added degree of difficulty.
Joshua has a rare brain disorder resulting in significant physical disabilities, so he races as a team with his mother.