KC arrives as a special birthday gift from the well-to-do Morgan family for their only daughter, Ashley. From the moment that KC arrives, everyone is thrilled and charmed by his antics. He’s a dancing, music machine built to entertain, and no one does it better. KC quickly becomes Ashley’s BFF… Best Furry Friend. He leads a charmed life, but it’s not the life of a dog. It’s the life of a high-end toy. When KC takes a tumble while showing off, he gets damaged and is sent out to be repaired. He doesn’t realise it, but his life is about to change forever.
After being dropped off by the tearful Ashley at a robotics shop run by Mike Luna and his daughter Izzy (Ellen Page), KC sits alone on the repair shelf waiting to be fixed. The earthy repair shop couldn’t be more different from the opulent Morgan home. KC feels like a fish out of water when a mysterious figure emerges from the shadows. It’s Marshall (Ron Perlman), the Luna family guard dog. Marshall is a gruff old mutt who takes an immediate dislike to the young KC. KC’s not used to being challenged and dismisses Marshall. At the same time, KC can’t help be somewhat fascinated by the first “real” dog that he’s ever met.
Shortly after KC is repaired, he is stolen from the robotics shop by a couple of opportunistic bikers, Vik (Rainn Wilson) and Bobby (Steve Zahn). As the ever the dutiful guard dog, Marshall takes the theft personally and pursues the bikers, determined that KC won’t be stolen on his watch. After finding the thieves at their hideout, KC and Marshall escape into uncharted territory, all the while bickering like an old married couple.
Pursued by Vik and Bobby, KC and Marshall are thrown into a series of thrilling adventures. They battle with a pack of street dogs in an abandoned iron foundry, led by an old enemy Trazen (Edward James Olmos), get swept down a turbulent river, all the while being pursued by Vik and Bobby who, fuelled by revenge, are getting closer by the day. The only way that KC and Marshall will survive is if they learn to work together and trust each other. Can they put aside their differences long enough to elude their pursuers and make it back to their respective homes?
Robodog is a story of friendship. It’s about appreciating what’s inside, regardless of the packaging. An old dog can have his preconceptions overturned and become young again, and a mechanical dog made of circuits, gears and carbon fibre can prove himself to be loyal, brave and trustworthy.