Amateur racing puts so much pressure on families that it often rips them apart. For pro rider Davi Millsaps, the rift has been so big that he has seen his mother Colleen just once in the past five years. As their differences deepen, other hardships have posed new challenges and exacerbated existing tensions.At heart, the Millsaps are fighters. Colleen's father was a World War II veteran who taught her to never quit. Despite a painful divorce and financial pressures from Davi's burgeoning racing career, that life lesson drove her to toughen up to survive. The Millsaps way has molded Davi into a fierce competitor, and carried him through personal and physical challenges such a losing a kidney. Plus - motocross is the only thing he knows, and he's not ready to let go just yet.Still, Davi's career has had some snags. When he turned pro and started bringing in big money, his relationship with his mother hit a tipping point. Davi started spending big, too, and lost the work ethic he'd had as an amateur. The more his mother pushed him, the more Davi pulled away.Thing only got worse when Davi's parents divorced, his life became unstable. Soon, Carlos and Thelma became the happy home that he could turn to. Now, he's a new father himself and wants to do better than his own father did, but his strained relationship with his mother and sister means they might never see his child. In recent years, Davi has struggled on the track and been mocked by the industry. But this year could be his turning point: He finished second in the Supercross season, had some moments of brilliance in outdoors, and scored a good contract for the year ahead. As he builds toward success again, Davi's greatest fan, his grandmother, is battling cancer. Davi hopes he can resolve his issues with his mother before his grandmother is gone.