We travel from the savannahs of South Africa to the dense forests of Canada in the search for men who put their lives on the line every time they go to work. This is a high-octane journey through these exciting and uncharted worlds. We get to know the ordinary men and women who perform extraordinary acts of bravery and heroism day in and day out. Filmed in an observational style, the series is a jaw-dropping, nail biting journey around the world, bringing out insights into communities that put themselves on the line, looking at the drive and determination required to fulfill their jobs.