Pollyanna marries sweetheart Jimmy Pendleton, and together they move to start their married life in Boston. The book follows their many adventures of marriage, setting up home in a new city, having visitors, and many other events, including Jimmy's signing up to fight during WWI. Throughout the uplifting book, Pollyanna continues to play her characteristic 'Glad Game' and tries to encourage others to do the same. (Summary by Claire)