In this episode of Barney and Friends, the gang learns about different kinds of dogs. The show begins with Mr. Boyd asking Barney and the ki ds to help him find his lost dog, Bingo. Once they do, they sing the s ong, "Bingo." They also learn about going to the doctor's office and w hat a vet does with BJ. They meet Miss Duffy and her guide dog, learni ng that they shouldn't pet her without asking since she's working when she's leading Miss Duffy. Finally, the gang ends up in the caboose, l ooking at different kinds of dogs on the Internet.