Fifth grader Nathan Rockledge has been counting down the days-and meals-until his class trip to New York City. Now that the big event is finally here, he can barely stand the excitement. After all, isn't this what being a fifth grader is all about? Oh sure, his Mom is one of the chaperones, his annoying sister Abby is tagging along, and that know-it-all classmate, Lisa, will be there as well. However, none of that matters. Not when he'll be with his best friends, Tommy and Sam.
While seeing the sights, his teacher wants his class to take notes, but Nathan has other ideas. With paper and pencil in hand, Nathan prefers to doodle, transforming himself into Nate Rocks, boy hero. Amid ninja pigeons to fend off, aliens to attack, and the baseball game of the century to save, will Nate Rocks be able to save the day one more time?