A team of archaeologists works four separate World War Two sites across Britain, starting with the salvage of a remarkably intact Fairey Barracuda bomber from the mud of the English Channel. The crew also excavates the wreckage of a Nazi V2 rocket buried in Kent, tracing the technology behind Hitler's supersonic terror weapon. Elsewhere, investigators sift through the pre-D-Day barracks once used by Easy Company, recovering personal items left behind by the soldiers before the invasion. A separate strand examines the wreckage of Operation Tiger, the disastrous D-Day rehearsal off the Devon coast that was covered up for decades and cost hundreds of American lives. Divers, historians, and excavation teams handle the physical evidence on camera, connecting corroded metal and buried objects back to named units and specific dates. Rather than a single narrative, the film moves between these four investigations, using each recovered object and wreck site to reconstruct a piece of the war that had otherwise gone unrecorded.