The idea is that this show breaks down basic science in a fun and educational way that young children can understand. Nina is accompanied by her five neurons who help her to explore the world around us. Her neurons are the five senses - taste, touch, smell, sight and sound. They help Nina to work out her scientific dilemmas and are portrayed as cartoon characters.
Nina works out all kinds of little scientific dilemmas in her short shows. From why some things smell bad, to what makes an echo. There's a question asked at the start of each episode by a young child, often a question that a lot of young inquisitive children might well have asked us at some point in time, and Nina then explores that question to work out the answer with the help of her Neurons. I like that they actually explore all the various options before coming to the answer in this show as that's as important to teach young children as the actual answer is.