Two profiles of work that kills people who make a mistake. In Cambodia, where 4 to 6 million landmines still lie scattered from decades of war, the film follows clearers from the Cambodian Mine Action Centre as they crawl grids of grass and dirt, probing by hand for metal that can still take off a limb. The second half climbs Mount Merapi in Java, a volcano that has erupted more than 80 times, with the volcanologists who monitor its tremors and gas readings from stations on the slope. Their job is as much persuasion as science: convincing villagers who trust local superstition over seismographs to evacuate before the mountain moves. Both segments stay close to the workers themselves, showing the routines, the equipment, and the waiting that make up most of a day in either job, with the occasional moment where the danger stops being theoretical. It is a straightforward, footage-driven look at two professions most people never think about.