Kees is kissed by an ex of Johnny, who just returned from a trip. She seemed to carry the Enola virus which is deadly.
That evening Sjakie visits the Flodders. The following day he will go to Africa in order to visit an indigenous tribe which until recently had not yet been discovered. Kees doesn't feel so well. Then, the health service does an invasion and declares that Kees possible has the virus aswell. The whole family will be placed under quarantine, because there is no cure against the virus.