Pırıl: Sayıların Gizemi: An unprecedented cloud has appeared in the sky. As a result, numbers begin to disappear one by one. İlhan, seeking revenge for the trauma he experienced in his childhood, is eliminating the numbers with the help of Biliş, whom he has brought along. As the numbers disappear, everything begins to fall apart, and daily life comes to a standstill. Pırıl and her friends embark on a thrilling adventure to solve the problem. In doing so, they discover that the root of the major issues lies in basic arithmetic and use mathematics once again to save the world from chaos.