Every year, about 48 million people in the U.S. struggle to find enough to eat. Organizations on the frontline of Bay Area food insecurity are working harder than ever. One of them, the San Francisco and Marin Food Banks now serve 36,000 households a week. So how does it all happen? In this piece, produced by Rebecca Birungi in 2013, we go inside the main distribution center in Potrero Hill, to see what happens behind the scenes, to get food to the people who need it most.