After a shipwreck, an intelligent robot called Roz is stranded on an uninhabited island. To survive the harsh environment, Roz bonds with the island's animals and cares for an orphaned baby goose.

Years after witnessing the death of the revered hero Maximus at the hands of his uncle, Lucius is forced to enter the Colosseum after his home is conquered by the tyrannical Emperors who now lead ...