A small child, fascinated by a lighter-than-air balloon, clambers aboard. The balloon takes flight, lifting the child upward to an amazing adventure. The land-bound adults have conniptions as the balloon wafts by; the child has nothing more than a great time.

A young boy discovers a stray balloon, which seems to have a mind of its own, on the streets of Paris. The two become inseparable, yet the world’s harsh realities finally interfere.