Alex Lagina joins Kevin Dykstra and his team in their quest to find 140 million dollars in Confederate gold they believe is on the bottom of Lake Michigan and on their first day back on the lake, new evidence suggests they may have found it.

A daring diving operation produces potential evidence of some 140 million dollars 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 shocking evidence of a web of underground 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.

A century old family's secret lures Kevin and the team back to Georgia where new finds suggest there's more Civil War gold to be discovered.

Shocking new evidence suggests the plot to steal 140 million dollars in Confederate gold may have been tied to the highest office in the land; dangerous waters threaten the team's attempt to investigate a sunken boxcar.