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?