Zac Power #2

I am reading the ZAC Power series and it is a series of mysteries. Zac is an intelligent and smart boy that is a 12-year-old spy. He has a big brother named Leon that use to be an outdoor spy, but now the is taking the position in the technology in GIB. GIB is a good team and their enemy agency is called BIG. Zac got the chance to work in the agency when he saved his brother and almost completed his mission. GIB then thought he was ready for his first mission.