at the san antonio food bank, it's also remembered as a day from hell, as temperatures soared. >> by oon shift, volunteers were dropping. literally, ambulances were coming because of people having heat exhaustion. >> reporter: food bank president, eric cooper. >> i saw the line, backed up on the freeway. and i drove for mile and mile and mile and the line was just -- i wasn't hitting the end of it. and so, i panicked. >> reporter: more than 10,000 ca cars went through. this was the richest nation on earth and it was shocking. >> we're a hard-working, poor economy. multijob, uninsured, just hard working, right on the edge. but making it. i mean, just surviving and making it, without help. covid-19 pushed those families that were on the edge, over that edge. >> reporter: to try to stay ahead of demand, the san antonio food bank has its own small farms. all summer, volunteers were out in the fields planting. soon, these crops will feed another line of families. >> god bless them and their families. >> reporter: but the need here is actually greater than ever. on our visit, with the tempe