All of sudden Boreas is home sick. He misses his friends, who all go to high school now. Leafing through his logbook, all the names of his new friends catch his eye: Mel on Sark, Aziz in Morocco, Isi on La Gomera... He's got friends all over the world, and he meets new ones every time. Like Kirsten, who sails with them from Hawaii to Tahiti and teaches him Polynesian navigation. Along the way, they try to find a solution for the plastic soup. After Tahiti Boreas and his parents sail to New Zealand, Australia and Bali. And then, finally, it seems they are really on their way back to the Netherlands. Or not? Because... Pirates? Real pirates?!