A diving operation produces potential evidence of some $140 million in gold at the bottom of Lake Michigan, while an informant shares a 50-year-old secret that shocks and energizes the team.

The team uncovers evidence of a web of tunnels connecting the homes of key players in Kevin's theory, offering possible proof that members of the 4th Michigan Cavalry returned home with millions in Confederate gold.

Excitement builds when Kevin and the team uncover evidence on the property of a Civil War general that could convince Marty their theory is legitimate.

Un secreto familiar centenario lleva a Kevin y al equipo hasta Georgia, donde averiguan que puede haber más oro de la Guerra Civil por descubrir.

Nuevas pruebas sugieren que el más poderoso del país en aquella época pudo estar relacionado con el robo de 140 millones de dólares en oro confederado. Además, la peligrosidad de las aguas puede impedir la exploración de un furgón hundido.

A theory suggests the theft of Confederate gold funded one of the most nefarious crimes in history.

Excitement soars when Kevin finally holds gold brought home from the arrest of Jefferson Davis, convincing him that his theory is true.

For Kevin Dykstra and his team, an eight-year quest to find a legendary boxcar at the bottom of Lake Michigan becomes a battle against nature itself.

Marty Lagina joins Kevin and his team as they battle the elements and take one final shot at finding 140 million dollars of Confederate gold at the bottom of Lake Michigan.