Back at 7:41 with two families claiming one canine. A little Maltese that went missing and resurfaced seven years later and 2,000 miles away from his home. ABC's Mara schiavocampo is here with that... See More
Back at 7:41 with two families claiming one canine. A little Maltese that went missing and resurfaced seven years later and 2,000 miles away from his home. ABC's Mara schiavocampo is here with that story for us. Good morning, Mara. Reporter: Good morning, robin. It's a case of puppy love lost and found and then lost again. That little dog has an a knack for running away and two different families say he belongs to them. Oh, my gosh. Oh, my gosh. Reporter: It was a tale wagging reunion seven years in the making. Now leading to a doggie tug-of-war between two families. This morning, this Maltese named Reese is back home with his family in Houston, Texas, after running away in 2007. We looked everywhere for days. Reporter: The millers say they couldn't find Reese anywhere but while he seemed to have completely disappeared, they say they never forgot him. And we never gave up hope. Well, and we never stopped talking about him. Reporter: This weekend they were thrilled to get an unbelievable phone call. Reese had been found in Tacoma, Washington, almost 2,000 miles away thanks to a microchip connecting him to the family. It was just a fairy tale. He's had a fairy tale. Reporter: But not everyone is living happily ever after. Right now I feel like there's something missing. Reporter: It turns out this dog's been living a double life. Also going by the name of Harley. The woffords in Washington state say Harley is their beloved family dog adored by their three children and nine grandchildren and he ran away just this weekend. My son came back from Iraq. He was broken. I can't even explain what Harley has done for him. Harley's touched our lives more than you can explain. My niece, it's really even harder to see her cry for him every single day. Reporter: They claim they adopted Harley 6 1/2 years ago. The shelter saying the previous owner had given him up and never mentioning a microchip. Though the wof Fors desperately want the Maltese returned, the millers say they're not giving him back and experts say they don't have to. In this situation we look at possession and right now the millers have the pet and they'll probably be allowed to keep the dog. Now, the woffords say they don't blame the millers for wanting to keep the dog but they are upset with the shelter they agonted him from for reportedly not checking for a microchip in 2007 and while they are devastated they say they're comforted in knowing that the dog is in a good home with a loving family but so sad because no one did anything wrong here. Except the shelter. They didn't check for the microchip. I feel bad for the woffords. You wish they could share him. Custody share. Okay, Mara, thanks. Coming up, a promfidential.
This transcript has been automatically generated and may not be 100% accurate.