The great battle with the Gloomy Forest has died down. The storm cats, who lost the leader of the Firestar in this terrible battle, gradually come to their senses and look forward with hope to the beginning of the season of Young Leaves, and with it — the opportunity to heal wounds and restore strength. However, instead of the long—awaited warmth, a new disaster strikes the forest - an unprecedented flood threatens to flood the territories of all four tribes. The water comes and comes. It turns out to be more and more difficult to find prey every time. The situation in the forest is heating up…Blackberry Star, the new leader of the Thunder Cats, who has become a worthy successor to Firestar, helps his tribe with all his might and maintains a fragile peace with his neighbors. He does not leave anyone in trouble who is in a difficult situation, including domestic cats forced to leave the flooded nests of Bipeds. However, the main test is still ahead, because under the pressure of the elements, tribes can disappear forever..."Disaster" is the first book of the special volume—dilogy "The Storm of the Blackberry Star".