Tin

A metal boy named Tin is looking after his little sister, Nickel, one afternoon when she grabs hold of a balloon and floats away. Tin and his dog, Zinc, set off in hot pursuit as she floats toward the big city. "A metal boy named Tin is looking after his little sister Nickel one afternoon when she grabs hold of a balloon and floats away. Tin and his dog Zinc set off in hot pursuit as she floats towards the big city. Can they rescue Nickel before she goes too far?"--