Watch Most Wanted: Teen Hacker

The series concludes by examining the aftermath of Kivimäki's capture and the legal battle that followed. This episode covers his conviction for a long list of cybercrimes, including the mass data breach and extortion of patients from a Finnish psychotherapy center. The final installment provides a comprehensive look at the judicial process, and features interviews with Kivimäki himself, providing a glimpse into the mindset of a person once considered one of the most dangerous hackers in the world. The episode ends by detailing his current status as he serves his prison sentence.

The focus shifts in the third episode to the FBI's investigation and the challenges of tracking a young, seemingly untouchable hacker across international borders. The narrative builds as the FBI closes in on Kivimäki, revealing how they were able to pinpoint his location and ultimately track him down to a casino in Las Vegas. The episode includes interviews with the FBI agents who were involved in the high-stakes manhunt.

Kivimäki wreaks havoc when he turns his attention to "swatting" -- falsely reporting an emergency in hopes of triggering a large-scale law enforcement response -- leaving the family of an FBI agent, a fellow hacker, and a community in Norwalk, Connecticut, caught in the crosshairs.

After learning that members of the notorious group Hack the Planet would be attending DEF CON in Las Vegas, the FBI descends upon the annual hacking convention in hopes of confirming the identity of the highly disruptive "Zeekill."