A group of students boards a sailboat named "Sloughi" to embark on a journey around New Zealand. Under mysterious circumstances, the ship is swept away uncontrollably into the Pacific Ocean amidst a great storm. The children find themselves stranded on an unknown deserted island and face dangers, having to show great courage and ingenuity to survive. They hunt, fish, set traps, tame animals, and cultivate the land. However, disagreements and conflicts put their friendship and group cohesion to the test. When dangerous pirates wash up on the island, the children must overcome their differences to confront them. Will they manage to neutralize the villains and return to their families and homes? Another exciting adventure from the great French author, combining in an unparalleled way enchanting descriptions, unbridled imagination, and a wealth of emotions.