Four siblings of different ages attending the same school; Deniz, Derya, Ali and Yaz have their own daily problems. Ali is trying to make a girl in his class like him. When Deniz was not selected for the school's music group, she lost her self-confidence and is no longer interested in music. Derya wants to be a student representative more than anything. The youngest, Yaz, is like the mascot of the house. As a result of the mysterious disappearance of their parents, the siblings learn that they are actually secret agents and were captured during an operation. Their parents work for a technology company called TeknoStar. Very important technological inventions that will affect the future of the world are being made here. While the children investigate their parents' disappearance, they find a secret room in the house and a high-tech supercomputer, TAOZ 4000, hidden in this room. By communicating with children, TAOZ will help them find their parents. There is a road map they must follow and some clues they must find for this rescue operation.
