Heads of rival lumber camps meet in a fight. Louis Lenoir, a renegade French Canadian, causes the death of "Big" MacDonald, a hard-fighting Scotsman whose life is guided by his dogmatic religious beliefs. His son, Ranald, is left to settle the blood feud. In spite of the pleas of his sweetheart, the daughter of a minister, he participates in a gang fight on the logs in mid-river just as a log drive to Ottawa begins.

Framed for stealing some pearls while staying at the country home of her aunt and uncle, Mr. and Mrs. Dennison, Delsie O'Dell is banished from their house. Delsie along with her bulldog, Violet, follows Oscar, the actual thief, to an old haunted house, which is the hideout for a gang of thieves. A series of humorous escapades follows as she first hides from the thieves, then pretends to be a ghost, terrorizing them. Eventually she retrieves the pearls, clears her name, and is safe once again in the arms of Bill, Dennison's secretary.

Mary Lucille Smith, a schoolgirl who elopes with John Chiverick, gets her marriage annulled by her father, and later pretends to be a widow to romance another man, Larry McLeod, leading to chaotic mix-ups and hidden identities at a party where Chiverick's new wife also shows up, all about mistaken identities, secret pasts, and comedic marital mishaps.