Pee-Wee Herman loves his bike more than anything else in the world and refuses to sell it to his spoiled neighbor Francis Buxton. While at a bike shop visiting his love interest, Dottie, the bike is stolen. Pee-Wee visits a fraudulent psychic who tells him that the bike is hidden in the basement of the Alamo Mission in San Antonio, Texas. On his way there, he meets Simone, a waitress with a dream of living in Paris. Her jealous boyfriend Andy thinks Pee-Wee and Simone are romantically linked, and Andy challenges Pee-Wee to a fight. Pee-wee flees into a boxcar on a moving train where he meets a hobo. Making it to San Antonio, he finds that the Alamo has no basement. Disappointed, Pee-Wee contacts Dottie and informs her of his situation. Pee-Wee again encounters Simone on her way to France, and Pee-Wee later dodges Andy at a rodeo.