Six years after meeting her during an investigation, FBI agent Malcolm Turner is now married to Sherry Price, and assumes a desk job to be close to her as they await the arrival of their first child. However, news reaches him that his friend Doug Hudson was killed, while working undercover in Orange County, California. Malcolm learns that Doug was investigating former military intelligence specialist Tom Fuller, who now works for the National Agenda Software corporation, and had discovered he was creating a computer worm that could provide backdoor access to government databases. Although he asks to assist, his boss refuses to let him interfere in the investigation being conducted by agents Liliana Morales and Kevin Keneally. Discovering Morales is sending an agent undercover to secure the job of nanny within Tom's family, Malcolm decides to take advantage of this, lying to Sherry that he must go out-of-state for a conference.