The story of how Jessica Hepburn met and ate with 21 inspirational women, and swam 21 miles across the English Channel to answer the question: does motherhood make you happy?

''Just delicious... it made me feel better in a world that can make you feel pretty rubbish.'' - Lisa Faulkner.

After the heartbreak of not creating the family she hoped for, Jessica Hepburn knew it was time to do something different.

So, she decided to swim the twenty-one miles across the English Channel. She'd never swum in open water before. She couldn't even swim very well. As her punishing training schedule commenced, she also discovered that you can't wear a wetsuit, and the only way to stave off the cold is to put on some weight.

This led to an idea - to meet and eat with 21 famous and inspirational women to help her get fat, and answer the question: does motherhood make you happy? Each of the women reveal compelling truths about the meaning of motherhood and gradually Jessica begins to swim her way out of sadness.