The Romans, in an effort to protect their homeland, seek the help of Thracian warrior Spartacus and his team of fighters. After a violent incident, Spartacus must enter the gladiator ring to face his punishment from the Romans.

Enslaved in gladiatorial school, the newly christened Spartacus must try to suppress his desire for vengeance when his new master promises to reunite him with his wife.

Lies, distrust and duplicity plague the house of Batiatus and impact the hopes of both Barca and Spartacus, who have benefited from good fortune and envision a future away from the grounds. Barca expects to buy his and his male lover's way out, while Spartacus anticipates his promised reunion with his enslaved wife, part of his reward for a monumental victory in the arena. But just in case things go wrong, Spartacus dreams and schemes an escape plan.

Batiatus conjures up a devious plan and enlists Lucretia, Gaia and a clutch of gladiator recruits to see it through. Oenomaus longs to reclaim the top gladiator rank, but new challenges cross his path.

Batiatus seeks vengeance for all that has befallen him and retains his gladiators and Solonius in the cause. The opening of the new arena arrives, promising a spectacle of combat and blood.

In an ironic twist of fate, a gladiator from the house of Batiatus will stand in the way of Spartacus trying to free Crixus from Roman captivity. Ilithyia's scheming puts her marriage to Glaber at risk.

Spartacus and his outnumbered rebels make one last attempt to win freedom in an epic final battle against the Romans.