The Men Who Built America: Frontiersmen is a six-hour, four-part miniseries docudrama which premiered on March 7, 2018 on the History Channel. It is a complement to the 2012 docudrama The Men Who Built America. The series follows the lives of Daniel Boone, Lewis and Clark, Davy Crockett, Andrew Jackson, and others who blazed new trails across America's wilderness. The series is narrated by Campbell Scott, directed by John Ealer and executive produced by Leonardo DiCaprio.It is the third installment of the That Built franchise.