The young merchant Duncan is back from a long expedition that bought back the sacred stone called "Heart of the Mountains" from the infidels. Duncan has missed his loving wife, Heather, for many weeks. During a party held in honor of the expedition's happy return, the village is raided by Skaar's men, who steal the stone and kidnap the beautiful Heather. Duncan wants to set out on his own to recapture Heather, but the village Druid advises him to ask for help from Veronar, Heather's brother, who has been sentenced to exile for unknown reasons. Duncan sets out on the expedition, but not everything goes his way...