The story is about a cute little kids' club that focuses on the importance of obeying the commandments. Their motto is "Not Even Once!". (Will you smoke a cigarette? Not Even Once! Will you drink alcohol? Not Even Once! Will you steal, do drugs, dress immodestly, etc.? Not Even Once!)
The purpose of the book is to focus on making a decision to be obedient before you come face to face with it. It's such a great principle! I have tried to apply this in my life and it is what kept me from doing a lot of things as a teenager or young adult that could have made my life a lot more difficult and complicated.
I found an article on our church website on the subject (in particular as it relates to the word of wisdom- which addresses drug and alcohol use) and a little video clip as well.
I think this book is a great way to get some discussions started with your kids about different commandments. It doesn't go into great depth about the different commandments- so just know that you will want to have your own discussions about those, and the book may bring up questions).
Something that I really liked about Wendy Watson Nelson's book is a Guide for Parents at the back of the book that lists suggested questions to discuss with your children about some of the commandments that are briefly touched on in the book (including topics like the law of chastity and not looking at pornography- topics that you may not have touched on very much with your young children). In the guide, you will find a section about Obedience and a section about Repentance (something that will be very important to teach your kids in conjunction with the subject of obedience which is teachable with the help of the story in the book).
I would love to see Wendy come out with a second book that focuses on the atonement because of course we're never going to get through life without committing any sins.
That being said, there are some commandments that are easier to make life-long commitments to than others and this book highlights those.
Disclosure: I received a copy of this book for review purposes from Deseret Book. All opinions expressed here are my very own.