Free from slavery, Marcus is determined to find and save his kidnapped mother. Meanwhile, his master Julius Caesar wants Marcus to help destroy the bands of rebel slaves and their leader Brixus, who plans to unite a slave army and resurrect the cause of Spartacus. But Marcus and Brixus are old allies who share a life-threatening secret. Marcus is torn between his friend and master. Can he convince Brixus now is not the time for a deadly revolt - and...