The night before Lee Jun is set to open his own animal hospital, his childhood pet Pebble visits him in a dream, giving him a mysterious gift. Jun successfully treats his first patient, but when the dog thanks him for saving his life, Jun realizes he can speak to animals ! Word about the vet who can understand them spreads quickly among the four-legged residents of the neighborhood, and they come flocking to Jun's hospital. With his new ability, will Jun be able to save all these furry friends ?