Fourteen year old Polish boy Stas Tarkowski and eight year old Nel Rawlison from England are kidnapped as the hostages by Arabic fanatics and taken to their religion leader. Then they manage to escape and try to return to their fathers. Children have a lot of dangerous adventures, meet two Black kids; Kali and Mea, who also help them, make a friendship with an elephant and help one Black's tribe.

Warsaw after the fall of the Warsaw Uprising. The Germans expel the civilian population and then proceed to systematically destroy the city. The capital is transformed into a sea of rubble, among which a few survivors hide – modern-day Robinsons. One of them is Piotr Rafalski, who rescues Krystyna, a wounded Jewish woman. Three soldiers of the People's Army, cooperating with a Soviet telegraph operator, are also in the city.