A Thracian warrior, enlisted by the Romans to fight, has his destiny sealed by an act of rebellious violence. As punishment he faces death by being forced to fight in the gladiatorial arena.

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.

Though Spartacus proved himself during training and now wears the attire of a gladiator, his coarse attitude and relentless quest to see his wife isolates him from his fellow gladiators and doctore.

Having performed shamefully in the arena against Crixus, Spartacus is forced to fight in the Pits. Batiatus, determined to profit from Spartacus, may be at risk if his debts aren't repaid.

Batiatus is presented with a gladiatorial opportunity of a lifetime. Spartacus and Crixus must overcome their mutual hostility to fight as a team against a legendary and unbeaten opponent.

With the glory and riches reaped by Spartacus' victory in the arena, it appears that his long-desired reward will be granted when Batiatus informs him that he will be reunited with his wife.

Overcome by the pressure of Batiatus' control, Spartacus must make a choice: leave his past behind and assume the mantle of a champion gladiator, or die.

Batiatus purchases a fresh lot of slaves at auction to be trained as gladiators and ponders the idea of selling Crixus.

Batiatus breaks the news that Spartacus is to service the richest woman in Rome.

Spartacus and Crixus are set up to fight in an exhibition match for Numerius' birthday, but Crixus is intent on blood.

Spartacus hovers on the brink. Meanwhile, Batiatus plots revenge against his enemies.

Lucretia and Batiatus await the arrival of Glaber with intentions to receive his patronage, while Spartacus focuses his attention on his plan for revenge.

Spartacus' fury culminates in the stunning season finale.

A younger Batiatus finds himself newly in control of his father's gladiator school. He uses his most skilled fighter to win favour with a cunning nobleman behind the building of the new arena.

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.

Just as his fortunes are on the rise, his future clear before him, Batiatus is stunned by the return of his father which puts his attempts to gain rank by exploiting those above his class at risk.

The House of Batiatus is caught in the power struggle between the younger and elder Batiatus. Lucretia reluctantly agrees to her husband's risky plan. Gannicus finds himself on unstable ground.

Batiatus' father announces a tournament to determine the worth of the men that make up his stable of gladiators. Crixus, dedicated to proving himself, is drawn into the power play within the house.

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

Spartacus discovers the grave responsibilities and costs involved in his new role as a leader of freed slaves. Claudius Glaber's arrival in Capua forces Spartacus to keep his rebellious band intact.

Spartacus and his men liberate a Roman villa, but its slaves are wary. Oenomaus throws himself into the brutal Pits, and Glaber supports Lucretia's prophecies, despite Ilithyia's protests.

Spartacus must navigate a divide that opens up among the gladiators after news of Naevia's fate. Lucretia reveals a long-held secret to gain information, and an attack puts the rebels at risk.

Spartacus leads survivors through the woods, but Crixus gets separated and returns to a place of past suffering. Lucretia pries into Ilithyia's affairs, seeking influence with a powerful Roman.

Spartacus leads a bold mission to free Crixus from Roman captivity, but a storied gladiator from the House of Batiatus complicates matters. Ilithyia's scheming puts her marriage to Glaber at risk.

Spartacus urges his restless rebels to train for the defence of their new sanctuary. Lucretia and Ilithyia seek comfort from each other, while Glaber's forces swell with some deadly new recruits.

Spartacus and his rebels try to increase their numbers by freeing fighters enslaved in foreign wars. Lucretia seeks to recruit one of her husband's former gladiators to outmanoeuvre powerful Romans.

Spartacus gets a chance for vengeance when a prominent Roman is captured, but will he satisfy desire at the cost of the greater good? The intrigue amongst Glaber and the women surrounding him heats up.

Spartacus must convince his people to unite against the imminent Roman assault. Lucretia struggles to be free from the commands of men who threaten her fate, and Glaber's ruthlessness has consequences.

Dwindling supplies and a superior Roman enemy brings the rebellion to its knees. Spartacus must restore hope to his people, as they careen towards their final confrontation with Glaber's army.

Spartacus continues to assemble a formidable army and outwit Rome's finest commanders. The desperate powers of Rome are forced to turn to the wealthy and ambitious Marcus Crassus to aid in the campaign against the rebellion.

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' son Tiberius makes a bold and fateful decision.

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

Spartacus puts a plan in motion to weaken Crassus' forces and gain the upper hand. Betrayal threatens to foil the plan.

As Crassus leads an onslaught against the rebel-occupied city, Gannicus finds himself trapped behind enemy lines. Tiberius is tasked by Crassus to hold a celebration in honour of a man he despises.

Their forces pinned in on a snowbound, impassable ridge, Spartacus and Crixus come into conflict over the method of escape. Crassus discovers it increasingly difficult to control the actions of those closest to him.

Spartacus and the rebels arrive at a crossroads. With the relentless Crassus driving his men hard in the pursuit of Spartacus, the conflict between Tiberius and Caesar escalates.

Crassus learns that a fellow prominent Roman is attempting to steal the glory of defeating Spartacus he feels is rightfully his. Spartacus aims to secure a bargaining chip he can use against the Romans and celebrates the memory of a fallen brother.

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