My name is Ida Ha, and I love riddles. I need to become a real detective to solve this complicated case! The 221 team is waiting for the first official case! Someone hacked the Happy-happy-go-go game and robbed the players of their well-deserved valuable prizes. Ida and her friend Hanse take over the investigation! The mysterious computer genius Apple Rabbit immediately falls under suspicion. But Ida is convinced of his innocence. Moreover, he himself turned to the detective for help. Who framed the Apple Rabbit? And how to track down an elusive cybercriminal?