Netminder. Codename: Winger, #4

The thrilling conclusion of the Codename: Winger series. After a summer that was nothing like he'd planned, teenage secret agent Theo Reese is back to school and to work with Tactical Operational Support's IT department. His world turns upside down arriving home from hockey practice to a major security breach. On the run he soon discovers the TOS network is down and he's cut off. As he uses his unique skills to find out what's happened, Theo discovers the evil agency Blackbird is responsible.
A nemesis from Theo's first field mission is out for him and will stop at nothing to force Theo to help Blackbird realize their goal of taking global control of the internet. Getting help from some unexpected sources, Theo must stop the internet takeover while trying to keep those closest to him safe.