Transcript for Volunteers drive lost dog thousands of miles to return to owner
Finally tonight, this really is America strong. The dog who suddenly had so many strangers helping him get home. This is 7-year-old Jake, found alone, wandering the streets in roaring spring, Pennsylvania. A vet checking him out, and finding a microchip. Unbelievably, that chip was registered to a family in Phoenix, Arizona, ten states away. When that family got the call, they were overjoyed. He'd been missing for a year. They now believe someone must have taken the dog, perhaps believing he was a stray or that he needed care. They thought they might never see him again. But Jake's parents now have an infant at home, so, picking him up was going to be difficult. So, when strangers learned that Jake was ten states away, through Facebook, they began to help. One stranger at a time. Starting in roaring spring, Pennsylvania, a four-day your knee, 20 drivers, more than 2,000 miles. All the way home to Phoenix. Ready to go. Reporter: Renee took the first leg, putting a t-shirt on Jake. Arizona or bust. Hi, everybody. We are about to cross into Maryland with Jake. Reporter: Those strangers dock uniting the journey. Renee says she was overwhelmed by the generosity of so many others who wanted to help, too. I'm not going to cry talking about this, but I appreciate it so much. Reporter: Jake spending the night at Paula's house in Knoxville. The next day, there's Jake in the back of Lauren's car. And there's her 4-year-old son asleep in the back. She checked in. Hi, David, this is Lauren. Reporter: Telling us about the dog's reaction. Jake, when he got picked up by them next. He was howling when he saw us, almost like he was telling us thank you for coming and getting me and helping me get back to my home. Reporter: Jake's dad, Ryan, beaming. Picking him up for the final 117 miles. And mom aria coming home, Jake waiting. Hi, Jake! Come here! Where are you going? Reporter: She wanted more of Jake after being gone that long. Tonight, back home with the help of so many strangers along the way. That is America. Jake is home tonight. I'm David Muir. Hope to see you right here tomorrow. Good night.
This transcript has been automatically generated and may not be 100% accurate.