Randy's Donuts is a local store that sells donuts and a landmark building in Inglewood.
Tony Stark flew to Inglewood in his Iron Man Armor after his last birthday party, where he got drunk while donning the armor. To treat his hangover, he ordered coffee and a box of donuts at a Randy's Donuts establishment, and proceed to eat them inside the giant donut on top of the building.
Nick Fury appeared to have a talk about Stark's current condition, and what Stark needed from S.H.I.E.L.D. even although he did not want it. Stark's new assistant, Natalie Rushman, revealed herself as S.H.I.E.L.D. Agent Natasha Romanoff, assigned to Tony Stark after discovering his Palladium poisoning.
Stark's erratic behavior made him become a matter that S.H.I.E.L.D. had to deal with, and Romanoff, fulfilling Fury's orders given before entering the establishment, injected him with a solution of lithium dioxide to relieve the symptoms of the Palladium poisoning and to get Stark back to searching for a suitable substitute for Palladium, but no known element or combination of elements was appropriate.
Fury simply revealed that he had not tried all of them.