Bailey, the puppy, continues his mission. Under the instructions of his owner Ethan, he persistently protects Ethan's granddaughter CJ through the continuous cycle of life. He regards Ethan's love and companionship for his granddaughter as the most important mission and meaning, and finally helps CJ. Gain happiness and return to the master Ethan again.
Josh Gad / Dennis Quaid / Kathryn Prescott