In AD 922, Arab courtier Ahmad Ibn Fadlan (Antonio Banderas) accompanies a party of Vikings to the barbaric North to combat a terror that slaughters Vikings and devours their flesh.
A man, having fallen in love with the wrong woman, is sent by the sultan himself on a diplomatic mission to a distant land as an ambassador. Stopping at a Viking village port to restock on supplies, he finds himself unwittingly embroiled in a quest to banish a mysterious threat in a distant Viking land.