The Courage to Run with Chip Gaines & Gabe Grunewald

In this documentary special, Chip Gaines fortuitously meets professional runner and rare cancer fighter Gabe Grunewald. Together they set out to train for a marathon and, along the way, find a friendship that alters Chip's perspective forever.

In this half-hour companion special to "The Courage to Run," Justin Grunewald embarks on a new chapter in his life, spreading a message of hope through the Brave Like Gabe Foundation.