Most of the documentaries on the Roman history depict Rome at the peak of its glory, during the Late Republic and Early Empire. Yet, Rome started from the humble beginnings, as a singular city-state that struggled for its survival, and was on the brink of annihilation on many occasions. During one of them, the Gallic Senones led by their king Brennus defeated the Romans at Allia and then sacked the city. After a 7 months long siege, the city and the Republic were saved by Marcus Furius Camillus, who would enter history as the second founder of Rome.