"The mission of a dog" plot introduced: pele started as a stray dogs were masters of Ethan"s father took off, from now on as "friends" with Ethan, from childhood was like peas and carrots to Ethan adult loyal guardian, Ethan to sprout pet food preferences and habits are bailey is like the palm of his hand, wheat following bacon, withered football.

Over the past decade, Bailey has become an irreplaceable presence in Ethan"s life.Even though Bailey went through four lives and four generations of rebirth, he never forgot to find the original master in the process of completing different missions in one life after another.