There are 12 billion bullets produced every year – almost two bullets for every person on the planet. Guns kill as many as 500,000 people every year. Tearing lives apart, they impact not only the dead, the wounded, the suicidal and the mourning, but have far-reaching effects on society and communities.

In a hard-hitting exploration, award-winning investigative journalist Iain Overton journeyed to over 25 countries, from South Africa to Iceland, Honduras to Cambodia, to try and understand the true impact of gun crime.