Traveling to communities in desperate need of Cesar Millan's help. He is summoned by neighbors, co-workers, relatives and friends who "blow the whistle" on a four-legged menace that has turned their lives upside down. Whether it's a spoiled chihuahua going wild in a family business, or an aggressive mutt spreading fear throughout a neighborhood, he will use his unparalleled expertise to bring balance to the dogs, the owners and their communities.