A accidentally overheard conversation, a yellowed piece of notebook paper with an incomprehensible design, and a thirst for adventure push sisters Masha and Dasha to search for a treasure that their mother and friends could not find twenty years ago. And as often happens, difficulties appear every now and then on the difficult path of treasure hunters. And now the girls themselves don’t know what to give preference to: tracking down the beast, saving birds, or looking for treasure.