The Doctor (David Tennant) and Donna Noble (Catherine Tate) arrive in what the Doctor believes to be first century Rome. After an earthquake, he realises he has materialised in Pompeii on 23 August 79, one day before the eruption of Mount Vesuvius. When he returns to the TARDIS’ location, he is told it was sold to a Lucius Caecilius Iucundus (Peter Capaldi), a marble sculptor.