A thief is after Grandma Eusebia's pearl necklace. He steals it with a remote-controlled robot, but he didn't think about Fix and Foxi... Why did Grandma Eusebia's heating system have to break down on the very day the great soccer game is to be broadcast on Fuchsburg Radio? Uncle Fax is desperate, because there is too little time to fix the heating. And one thing is really impossible to watch a soccer game when grandma's favorite soap opera is on the other channel. Fix and Foxi start the diversionary maneuver. A department store is looking for a child for a toy commercial. A lot of toys are offered as a reward. The director is enthusiastic about Lupinchen, but Fix and Foxi want to take her place. They think they already have the role - until Lupo tries to make himself useful as a star agent. Papa is sick with stress. The doctor says he must have strict rest. When Papa announces that he wants to go fishing alone at the lake, the three children secretly climb into the trunk of the car and go with him.