The Isle of Life

In Paris an actress divorces a jealous impresario and weds the officer who once saved from from suicide.

Dissipated youth Tommy Hilgrade is sent to the lumber lands in the Northwest by his father who hopes that hard living will reform his son. Accompanying Tommy is his sister Marion. Upon their arrival in Canada, lumber foreman Jack Macy is attracted to Marion but, unknown to her, he contributes to Tommy's addiction to drink and gambling. When Marion falls in love with French Canadian Jules Bonnivet after he rescues her from a fall through the ice, Macy schemes to destroy their romance by fabricating the story that Jules is responsible for Tommy's downfall.

When Edith Graham returns from school to live with her father, Lieutenant Graham, at a Northwest Mounted Police post in Hudson's Bay, she finds herself courted by two suitors, Corporal John Emerson and Reginald Annesley, the latter of whom is a wealthy purchasing agent for the post. Annesley however is also involved with the half-breed Marie. When Marie tells him she is carrying his child Annesley kills her and attempts to frame Emerson. However, Edith is suspicious and sets out to find the truth.

After watching her mother die gradually from a broken heart, Roberta, an illegitimate child, decides to seek vengeance from her father Bradley, who ran away before she was born. Bradley is wealthy now, and so Roberta secures a job as his secretary and schemes to ruin his financial empire.

Giovanni Pallazzi, a former member of the Black Hand, an Italian criminal organization, comes to America with his blind daughter Lucia and prospers. Hearing of his success, his former associates demand that he aid in their support