Jean Landier

Best friends become aware of a crashed plane lying on the bottom of the ocean, allegedly stuffed with wealth. Adventurers set off in search of prey. And along with them, Letizia is linked, with whom both friends are secretly in love.

Marie, a teenager, and her little brother Vincent, five years old, have just lost their mother. They decide to send a telegram to their father who has abandoned them for a long time, and go together to find him.