While the newlyweds Rosie and Will enjoy their honeymoon, Evelyn invites the rest of the family to join her at Crag Cottage, which overlooks the Hudson River. En route to the cottage aboard the Dolphin, the Travillas, Lelands and Raymonds visit many historic sites and learn about the Revolutionary War and its heroes and villains. Meanwhile, Grandma Elsie and Annis visit relatives in Pleasant Plains, Ohio. When the burglar whom Lulu captured escapes from prison, he seeks revenge. Chester Dinsmore, however, saves her life, and Captain Raymond is so grateful that he gives Chester permission to seek Lulu's hand in marriage. Recommended for ages 10 to 14.