With his mother missing and his father dead, 12-year-old Flip's new home is a remote storm-tossed Dutch island. Menaced by the local bullies and with a shadowy mute girl as his only friend, Flip tries to adapt to life on his uncle's farm - but his whole life changes when a sunken transport ship leaves a drowning stallion floundering in the waves.
When Daniel's explorer parents vanish; he is forced to live with his strict and rather strange Aunt Severe. And his problems only get worse when he finds four lost dragons hiding in her garden. But before he can help, three of them are captured by evil Gotcha Grabber and thrown into a zoo! And so, with the help of Dud-the shy and clumsy fourth dragons-Daniel sets out to rescue them.