Man's best friend is a dog, that's a fact. And who is a dog's best friend? Bailey, the four-legged hero of this story, has no doubt: his dog's life makes sense only with a certain boy named Ethan. When they're both puppies, it's all about fun. As they grow up, Ethan chases girls instead of the ball, and sometimes gets into fights - then he has to bite his enemy's ankle, and when he breaks the neighbor's window, someone has to take the blame. Bailey is happy because, like every dog, he wants to feel needed in life. However, there comes a moment when the friends' paths diverge and Ethan's life ceases to be pampering. Then Bailey must show his super-dog strength to find his friend and give him a helping hand.