In Montana, the Weibert family sets out to solve the last great mystery of the Battle of the Little Bighorn--the whereabouts of the cache of weapons taken from Custer's soldiers after the battle.

After unearthing promising evidence the Weiberts may finally have what they need to zero in on the location of the valuable Custer cache and validate their family's long-held beliefs.

Guided by Native American legend, the team unearths a Custer-era bullet. If it’s authentic, it could be evidence of an ancient Native path that could lead the team directly to the cache of weapons.