Jack had a grandmother, but she got sick, oh! Now Jack has a grandmother in purple peas. The doctor said this rare disease is scientifically called purple measles. And there is only one remedy, for the big ones and for the crumbs - a purple apple with white polka dots. It grows on the flume-bri-kos tree On the remote island of Nukavytrinos. And Jack built a boat and recruited a crew. Vira anchor! Bring me to the course! The ocean is dangerous, and the island is far away - will Jack get the saving fruit? But the wise grandmother, it turns out, has provided for everything...