Meet Marley, a yellow furball of a puppy who quickly grows into a large rowdy Labrador Retriever. With an appetite for nearly anything he can get his mouth around, including couches and fine jewelry, Marley is always getting into trouble. Some may say he is the world's worst dog. But those who know and love Marley accept him as a dog like no other. His heart is pure and his larger-than-life personality irrestible. With unconditional love and loyalty he brings joy to his family, the Grogans, and teaches them what really matters in life.