Hoping to escape the attention brought on by the accident that flattened Stanley, the Lambchop family drives to South Dakota, where they become involved in a wild west adventure at Mount Rushmore.

Confident that Stanley can succeed where international spies and thieves have failed, Stanley's mom who loves to cook mails him to Mexico to get a secret herbal ingredient that she must have.

When he inadvertently injures a Chinese acrobat performing at his school auditorium, Stanley travels with the brother and sister duo to Beijing where he trains to perform for the president of China.

Flat Stanley travels to Washington D.C. to receive a special award from the President herself, but even after all his adventures, he is still not sure if he deserves to be called a hero.

"Stanley Lambchop is whisked away to Paris, where he must help catch a mastermind art thief at the historical Louvre museum by posing a painting"--

Visiting New York City to take part in an International Declaration of Friendship, Stanley joins a group tour of the city, but when he and a new friend get separated from the group, they manage to have fun while searching Manhattan for their families.