The Central American country of Guadiana has decided to embark on a new path of development. The US special services are trying to overthrow the revolutionary government of the republic. To do this, a secret test site has been built on the territory of the neighboring state of Santo Rico, which is used to control the so-called "climate weapons". These weapons cause hurricanes of tremendous force that hit Guadiana and destroy the country's economy. Soviet meteorologist Said Khodjaev arrives in Guadiana to investigate the causes of hurricanes. To prevent this, a sabotage group led by Colonel Bert enters the territory of the republic....