Calavius is seen for the first time participating in gladiator games along with his wife and son. At the next meeting, while Batiatus is buying Spartacus armor in honor of his victory over Theokoles, Calavius is visibly distressed by the death of his cousin, Ovidius, and his family. He is investigating the matter and seeks revenge for those who committed the vile act. He receives the news that Ovid's boy still lives (false news planted by Ashur to make Barca look disobedient) and goes to personally rescue the boy, only to discover that the messenger has delivered a lie.
On Numerius' 15th birthday, Calavius fulfills his son's wishes and allows the party to be held in the ludus of Batiatus. Many guests come to the party and Calavius is pleased with the result. When Numerius decides he wants Spartacus and Varro to fight, and then Varro dies, Calavius supports his son's decision, claiming that he is a man and can make decisions. Batiatus, irritated by the change in events, but worried about losing his good reputation with Calavius, feels forced to make Spartacus obey. That same night, Batiatus, looking for someone to support him for a seat in the Senate, asks for Calavius' support. But Calavius believes that Batiatus is not suitable for politics and suggests that he renounce his ambitions. Batiatus, mortified and humiliated, wants to take revenge.
Batiatus later kidnaps Calavius and keeps him trapped in the sewers while Aulo and Ashur keep watch. He threatens and hits Calavius, trying to blackmail him to get a seat in the Senate, but Calavius refuses to obey, even managing to tear off a piece of Aulo's neck.
Eventually, his throat is cut by Ashur and Solonius is guilty of his murder.