Spirou and Fantasio are hired by a doctor to escort some of his patients. Their ailment? An apparently incurable case of the hiccups. His solution: Send them on the most insane adventure ever and scare the hiccups out of them!

Since he offers to pay for their expedition, the two fearless reporters agree to take the patients with them as they attempt to locate two explorers lost in 1938 near the Nepalese border - in the middle of a war!