Will is 36 years old and lives a happy existence in London as a carefree single. He follows the latest trends and knows, what's cool and what isn't. However, he feels he needs to meet more women and so joins a single-parent group full of women who he believes are waiting to meet "Mr Nice Guy".

Instead he comes into contact with Marcus, a young teenager who is definitely not trendy and is bullied at school and slowly they start to learn from each other how to act their own age.