carrington clarke: sixty-one-year-old delivery driver huh wonjea is a subcontractor with the korean postal serviceof 14 hours a day, or 70 hours a week. carrington: his shift begins at the regional distribution center. there are thousands of parcels here waiting to be sorted, not by warehouse staff but by the drivers themselves. carrington: this is one of the major complaints of these delivery drivers. they spend hours at the beginning of their shift, sorting and then loading these packages onto their truck, and they say they're not paid for those hours. huh: our job is deliver the stuff. that's our job. it's clearly stated in our contract, but before that, we have to spend, like, four hours every day before we begin our job, without payment. carrington: drivers are only paid when they deliver an item, around $1.00 to $1.50 per parcel. the boom in online shopping, due to covid-19, means drivers are spending even longer sorting packages, delaying when they can start their deliveries. since the pandemic began, 21 delivery workers have died. unions say it's from overwork. huh: it's not just car accid