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.

Flat Stanley mails himself to Japan to visit his hero, martial arts movie star Oda Nobu, and becomes his personal ninja.

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"--

After Dr. Dan comes up with a cure for flatness, Stanley, who is on vacation in Boston with his family, must decide whether or not to stay flat.

Stanley Lambchop has been invited to New York City to take part in an International Declaration of Friendship at the United Nations! But before anyone signs the declaration, the group goes on a whirlwind tour of New York City. What should be an adventure quickly turns scary when Stanley and his new friend Ian get separated from their group. But Stanley and Ian manage to find the fun in their situation, traveling around Manhattan: through the subway,...