Jasmine takes her newfound doggy friend Happy on a long journey to her sick grandmother in Baguio. The two walk an incredible distance, face all kinds of challenges, run into many strangers and help them along the way. Her grandmother had been ill once and then a dog helped her to recover - maybe this time Happy the one.

影片讲述了米吉（约翰·劳埃德·克鲁兹）和莱达（莎拉·杰罗尼莫）在第二部电影事件后分手后的生活。米吉现在和贝莉（伊莎贝尔·达扎）有关系，而莱达现在在美国生活后是一个更凶猛的女人。