Trakyalı bir asker olan Spartacus sürekli baskısı altında kaldıkları Roma Cumhuriyeti ile birlikte Getaelar'a karşı savaşmak için Roma ordusuna katılır. İlk çarpışmadan sonra Spartacus doğuya doğru çekilen Getae ordusunu takip etmek yerine Karadeniz'e gitme emri veren Gaius Claudius Glaber'a karşı gelir ve köyüne gitmeye karar verir. Köyüne yaklaştığında Getaelar'ın orayı mahvettiğini görür ancak karısı kurtulmuştur. Geceyi bir mağarada karısıyla geçiren Spartacus'u sabah Roma ordusu bulur. Glaber, Spartacus'u köle olarak alır ve karısını da Suriyeli bir tüccara satar. Spartacus daha sonra Ludus'a girer ve karısını bulmak için savaşmaya başlar.
Romalılar Yunanlılarla savaştadır. Ordu, Yunanlılarla birlikte savaşan Getae'lıları durdurmak için Trakyalı savaşçılardan yardım ister. Bu teklifi Getae'lıları ortadan tamamen kaldırmak için kabul eden Trakyalılar beklemedikleri bir olayla karşılaşacaklardır.
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.
Spartacus continues to train in Batiatus' gladiatorial combat school. His tempestuous co-operation given in exchange for Batiatus' promise to search for Sura. Meanwhile Batiatus' money troubles and the drought continue. With the Vulcanalia approaching, Spartacus is determined to get nominated to the primus, the feature attraction, though it means fighting the undefeated Crixus.
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.
In an effort to bring rain to Capua, the Primus (a prestigious competition for the greatest of gladiators) is announced and Batiatus enters his champion Crixus and Spartacus against Solonius's Theokoles, an indestructible 10 foot tall god of the arena. Can Oenomaus train them sufficiently enough to win their battle ?
Spartacus, now declared the New Champion of Capua, is surprised by the news that his wife Sura has been found, so he draws a plan to gain his freedom. Meanwhile, Barca's freedom is in jeopardy when Batiatus learns that Ovidious' son is alive.
Spartacus is forced to play a roman fighter in the games against a group of thracians, as he recalls his wife and how he met her. Meanwhile, there are some mysteries surrounding Barca's freedom as Pietros tries to deal with it.
Licinia wants to have a quality time with Spartacus, but Lucretia believes that he has spent so much time without a woman and send a slave to him to practice. When Ilithya learns the intentions of her friend, she wants a quality time for herself with Crixus, which may affect Lucretia's state of mind.
Numerious, the Magistrate's son, is about to celebrate his birthday and the celebration will be at the house of Batiatus, so he decides to have Crixus and Spartacus facing each other in a demonstration battle. But when Ilithyia approaches Numerious, he changes his decision drastically.
Glaber arrives at Capua to meet Batiatus and discuss the terms of support the house, but he wants to see the legend of Spartacus fighting before he makes his final decision. But that event leads to an important twist leaded by Crixus, which may affect all the intentions of Batiatus.
Spartacus realizes that becoming the leader of a mass of freed slaves can be challenging and he struggles to keep the rebellious group intact when news of Claudius Glaber's arrival in Capua reaches him.
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 is forced to mediate when the gladiators are close to divide into groups after news of Naevia's fate reaches them. Lucretia exchanges a long-held secret for some information and an attack puts the rebels at risk.
Spartacus seeks the safety of the woods for his surviving men while Crixus finds himself revisiting past horrors. Meanwhile, Lucretia spies Ilithyia's affairs.
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 rebels train hard to keep their new sanctuary safe while Glaber's forces are made stronger with the enlistment of some new deadly recruits. Lucretia and Ilithyia become close again.
Spartacus and his group of rebels attempt to free those who became slaves by falling in foreign wars while Lucretia manages to recruit one of her husband's former gladiators.
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 has to once again use his leadership skills to convince his band of rebels to unite against the Roman assault. Lucretia struggles to get rid of those men standing in the way of her fate.
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 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.
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 honor of a man he despises.
Their forces trapped on an impassable, snowbound ridge, Spartacus and Crixus clash 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 Caeser escalates.
Crassus learns that a fellow prominent Roman is attempting to steal the glory of defeating Spartacus. Spartacus aims to secure a bargaining chip he can use against the Romans.
