Eleven years later, in 1997, Nick and Elizabeth coincidentally enroll their daughters in the same summer camp in Maine called Camp Walden. Hallie and Annie first meet at the end of a fencing match, when they remove their masks and see that they look alike. A comical hostility between the two girls leads to a prank war that ends when the camp counselors fall into one of Hallie's traps and isolate the twins from the other girls.