Newly declassified British intelligence files from WWII have revealed a bungled Nazi plot to attack the US. Operation Pastorius involved 8 men who had formerly lived in the US returning to US soil to conduct a campaign of sabotage. But the operation was doomed from the start. First, one of the team got drunk in Paris and revealed details of the mission and then the submarine taking some of the men to the US ran aground in Long Island. Finally mission leader George Dasch got cold feet and gave himself up to the FBI in Washington.