A scrappy, optimistic Border Terrier finds himself abandoned in the big city after his neglectful owner, a thoughtless human with a misguided sense of responsibility, deliberately leaves him on the streets. Unwavering in his belief that he will be reunited with his owner, he attempts to navigate his new surroundings while encountering various urban dangers. Along the way, he meets a cynical and streetwise Boston Terrier who, having grown weary of human companionship due to past betrayals, believes that the terrier's relentless optimism is both misguided and charming. Despite their differences, the two dogs strike up a peculiar friendship as they embark on a quest filled with bizarre encounters and whimsical escapades.

During their journey, they form a motley crew of fellow stray animals: a sassy and quick-witted Australian Shepherd and a gentle-but-quirky Great Pyrenees. Each member brings their unique perspective on life without humans, coupled with the shared goal of overcoming life's challenges and finding where they truly belong. Together, they traverse vibrant cityscapes and face comedic obstacles, developing an unlikely camaraderie as they uncover the true meanings of friendship and independence. Along this path, the optimistic terrier learns lessons about trust, loyalty, and self-discovery. As each character explores their fears and dreams, they redefine what it means to truly be home.