In an old farmhouse, four young children are visited at bedtime by two friendly dragons that only children can see. The children are amazed that dragons can talk, fly and make themselves invisible when they want to. Grown-ups cannot see dragons and to them all this talk of dragons is simply fantasy. This is a world that only good children can visit. While their parents sleep, the dragons fly the children to Dragonland, a mysterious world, full of strange and exciting adventures, always to return safely in time for breakfast. When evil comes to Dragonland, the dragons return to the farmhouse. They need help to restore peace and overcome a bad dragon. The Dragon King has been captured. Once again, the children are flown to Dragonland where they face new adventures and danger. They must reach the palace without being caught by the bad dragon's guards. Can the children find an old leather book of magic that grants wishes, and will they save the King or will they be too late? Will they get home safely in time for breakfast?