Spartacus continues to build a formidable army and outwit Romes best commanders. The powers of the Empire are forced to turn to wealthy, ambitious Marcus Crassus to aid the campaign.

Spartacus leads a daring assault to provide food and shelter for his people. Crassus builds a fearsome army and receives an unexpected visitor.

Spartacus considers striking a deal with a band of marauders to ensure his people stay supplied and fed. Crassus's son Tiberius makes a bold and fateful decision.

The possible infiltration of a Roman spy causes tension to mount between Spartacus and his men. Crassus resurrects a long abandoned form of Roman punishment to teach his soldiers a brutal lesson.