The main plot of Horrible Histories Ruthless Romans
follows the struggle of young Rassimus to achieve glory as
a gladiator and obtain his freedom. Rassimus, a slave and
an ambitious gladiator-in-training, has been raised as a
foundling by the great gladiator trainer Lucius Gladius,
and spent nearly 12 years in his service. Lucius has now
given him a chance to begin his training, and Rassimus
hopes that he will be successful and one day become a
citizen of Rome.