had to go drive-through only because there weren t enough workers. i don t like eating in my car. they just got to get open. reporter: there were 10.4 open jobs across the country in september, only 6.5 million workers hired. trying to fill in those gaps are retirees like bonny, hidden helpers of the pandemic economy. my job listing says runner. i don t run anymore. i hurry as fast as i can. reporter: helping just comes naturally to bonnie. this is how owner danielle remembers it. she was walking up and me and my other partner met her at the door like sorry, our dining room is closed. she s like, no, i m here to help. i want to get the dining room open. reporter: bonny isn t just showing up. she s a crucial member of the team. i work five days a week a lot, walking, getting the orders, taking the bag, walking to the car and giving it to the