When her older sister doesn't get the kind of pony she asked for on Christmas morning, Jenn and her father assemble the rejected gift that soon becomes one of Jenn's best friends: a robotic pony named Po. But when their friendship is threatened by a factory recall of the robot ponies, Po has to decide how he wants his friend to remember him: by shrugging off the loss of a defective toy, or by grieving the death of a true friend.