A Norse warrior becomes embroiled in a feud with a former slave over the succession to the Northumbrian throne, unaware his arch-enemy is really his half-brother. Matters come to a head when they both set their sights on a Welsh princess, leading to a confrontation - but the situation is further complicated by the interference of England's sadistic king. Adventure, with Kirk Douglas, Tony Curtis, Janet Leigh, Ernest Borgnine and James Donald.

Einar, brutal son of the viking Ragnar and future heir to his throne, tangles with clever slave Eric, for the hand of a beautiful English maiden.