Alexis Conran and his trusty pooch Gelmer take to the fields and footpaths to investigate the problem of dog poo blighting the UK. Along his journey Alexis will be speaking to vigilantes and campaigners who are tackling the issue themselves. He also explores whether dogs' diets are partly to blame for the problem. And with exclusively obtained data, he finds out which part of the UK has won the crown for having the most complaints about dog poo.