The story follows Cantinflas as a humble man obsessed with sports. His journey begins at a prestigious sporting goods store owned by , who hires him as a salesman after seeing him play American football. The narrative unfolds through a series of "ups and downs":
Cantinflas plays a clumsy but enthusiastic employee at a prestigious sporting goods store. After several failures in different departments, his boss sends him to Acapulco to secure an advertising contract with the world-famous athlete Jorge Maciel.
como el severo y exigente dueño de la tienda de deportes.