Transcript for A senior citizen who bags groceries at a New Jersey supermarket has an interesting past
of a real hero, a World War II vet who hasn't stopped helping or caring. Here's ABC's John donvan. Reporter: Archie Fagan, 91 years old, and he keeps getting invitations. To be the grand marshal at the parade. To be in a commercial. To throw out the first pitch. What does this guy do anyway? Give a service with a smile. Reporter: Nowadays he bags groceries in flemington, new Jersey. Ladies and gentlemen the sandwich is on top. Reporter: He greets the customers and he announces the special. Get a hot sandwich before they're all gone. Reporter: People just love this guy and they also love his life story, straight from high school into World War II, where he survived the battle of the bulge. Saw the desolation, the human misery. Reporter: And as a German speaker because his parents were German immigrants, he spent time in nuremberg where the Nazis were put on trial. His charm makes him a celebrity around these parts and he uses that to put out a message -- We owe a note of gratitude to our fighting men in all the wars. Reporter: A more important message probably more than this one -- Love pork chops and roast beef. Reporter: John donvan, ABC news. We thank Archie for all of his service. "Good morning America" and "This week" in the morning. I'll see you right back here tomorrow night. I'm Tom llamas. Have a great evening. Good night.
This transcript has been automatically generated and may not be 100% accurate.