Seasoned horse jockey Jackson (Clifton Collins Jr.) has weathered decades of races on the riding circuit, but he now finds himself facing what could be his last season as his health deteriorates. With the help of Ruth (Molly Parker) and a promising new horse, Jackson starts to prepare for the upcoming championship. His plans take a left turn when a budding young jockey (Moisés Arias) shows up and claims to be his son. Caught between yearning for a connection and uncertainty about his own future, Jackson confronts difficult questions regarding his legacy.

影片改编自丹尼斯·约翰逊的中篇小说。讲述在20世纪初瞬息万变的美国，伐木工兼铁路工人罗伯特·格雷尼尔致力于修建横跨美国的铁路，经历了有着意想不到的深度、美丽和奇异的生活。