Synopsis by Hal Erickson
A standard Graustarkian romance, Son of the Immortals starred J. Warren Kerrigan as Prince Alexis Delgrade. Betrayed by his brother Michael (Bertram Grassby), Alexis works overtime to regain his throne. Lois Wilson co-stars as the American "commoner" whom Alexis loves but may not be permitted to marry. Curiously, this film is absent from several of Wilson's credit listings, even though it was one of several popular pictures in which she was teamed with J. Warren Kerrigan. As for Kerrigan, he played his "regal" role along the same lines as the cowboy heroes he was portraying during the same period.