NOKSU has to find a way to repair the sail on his toy boat, but all his ideas fail, until Dr. OK shows him how and his friends help.

NOKSU's name means 'be yourself', which is how he and his friends face everyday experiences and have fun learning life's little lessons. Noksu's natural curiosity and extrovert character propels him from one adventure to another and wherever he goes, tiny Nupi buzzes along too.