A millgirl is loved by the owner's son and the socialist foreman, who incites a strike and burns the mill.

Opal, who knows nothing about her ancestors, falls in love with G. D. Stanley, the strange young man who is her closest neighbor in the Canadian wilderness. One day, Opal is informed that she is really the princess of a small country and must return to her native land to marry the neighboring king to save her people from invasion.