Julius Caesar's political successes at Rome earn him governorship of two provinces and three legions. Although absent, he effectively runs the government with Pompey and Crassus. After Caesar's Helvetian victory he remains in Gaul to defeat Ariovistus, a German king encroaching on Celtic lands. Yet as Gallic tribes resent a continued presence of Roman legions, talk of rebellion flares and culminates in the massacre of Roman merchants. A rebel leader...