Tonight's team find themselves in BC, where they take control of Hannibal's Carthaginian army and attempt to defend Trebia in northern Italy from the Romans. Having formulated a strategy, the team send theirtroops into battle, co-ordinating their moves via computers and witnessing the sound and fury of combat through the hi-tech studio set-up.

Can famous victories be re-created by contestants eager to demonstrate their military guile? Tonight's team find themselves in 58 BC, where they take control of Julius Caesar 's Roman army, fighting for control of Gaul.