Ada Lejs — tret′eklassnica, uchyonaya i izobretatel′ — delaet uzhasnoe otkrytie. Lyubimyj jorkshirskij ter′er eyo sosedki pochishhen! Novaya chudakovataya odnoklassnica Ady, Nina, uverena, chto sobaku ukrali prishel′cy. No ved′ Nina takzhe verit v primety, sglaz i sverch′′estestvennye yavleniya. A Ada ubezhdena: najti istinnogo pochititelya mozhno tol′ko s pomoshh′yu nauki i techniki — to est′ samych sovremennych gadzhetov. S kazhdym novym shagom v rassledovanii stanovitsya yasno: Ada i Nina nastol′ko raznye… CHto vpolne mogut stat′ luchshimi podrugami!