Captain Donald King is sent to India to carry out a secret mission while the Black Watch, his regiment, leaves for France at the outbreak of the First World War.

The story of the famous battle between the Scots clans of Macdonald and Campbell, and the young woman who comes between them, Annie Laurie.

Zara, a phony psychic in a Hungarian carnival who, under the guidance of a Svengali-like con man crashes — and proceeds to swindle — American high society.