During the 1890s' Klondike Gold Rush in Canada, a huge amount of gold is discovered in the North. Men from all regions of the world migrate to the North on their dog sleds in search of the precious gold. Buck, a happy domestic dog, falls prey to a kidnapper, who kidnaps him and sells him to one such dog sled. Uprooted from his blissful life, Buck has the adventures of a lifetime. Follow Buck's journey as he finds his roots and transforms from a pampered husky into a wild beast.