Larry looks at Rome's 300th birthday in 400BC, conquering it's nearest neighbours, the Estrucans. Larry looks at the attack Rome came under from the Gauls in the battle of Allia, that lasted three years. The city survived, but only just and the leaders vowed to never come so close to destruction again. The Republic soon began a century of expansion. Larry then heads to Erice, where he discovers that the Roman expansion soon led them into another conflict, this time against the Carthaginians. He then heads to Tunisia to tell there story and how they came to despise one another and how their war came to a close with a Carthaginian genocide.