Next airing Mon Oct 3, 3 p.m. ET

100th Episode Celebration

In four seasons and 100 episodes, Dog Whisperer with Cesar Millan has grown into a cultural phenomenon, from parodies on "South Park" to being a clue on "Jeopardy" to appearances on "Oprah" and the "Tonight Show" and Cesar's two New York Times best-selling books. Dog Whisperer with Cesar Millan celebrates its 100th episode with a grand reunion of many of the past guests -- and their dogs -- all in one place at one time!