At the height of the Roman Empire, an eruption of Mount Vesuvius buries the town of Pompeii in volcanic ash, killing thousands. Now, forensic experts investigate a group of victims called 'the Fugitives' for the very first time. X-rays reveal ages, injuries suffered, and even artefacts like sandals and jewellery - while the investigation also throws light on why they failed to escape the most famous disaster of the ancient world.