The children are out in the forest on their bikes and find a circle of magic stones. A rainbow changes everything: suddenly they face Robin Hood, who learns to ride a bike and helps to find Lupinchen. Grandma Eusebia and Lupinchen are riding a train and are suddenly asked for their money by a Robin Hood - while Lupinchen immediately takes his side, Grandma fights doggedly for her money. Lupo goes to Uncle Fax to be nursed back to health - and fed. Lucky is not allowed to go to the nightly rock concert and secretly leaves the house. Pip and Pep of course want to come along! Without money all three try to get into the stadium and suddenly find themselves facing their idol. Meanwhile the parents miss their children and come through the main entrance.