A man (Phillips) who wakes up with amnesia also finds his supposed friend has accused him of murder.

True-crime author, Carly, and her husband Kevin take a vacation at a historical mansion on Crawford Island. Kevin thinks it will be a chance for them to reconnect, but Carly plans to research the puzzling unsolved murder of Diana Crawford.

In the final days of WWI a shell-shocked soldier must lead a mission deep beneath the trenches to stop a German plot that could turn the tide of the war.