Ep 1. Why-Fi

In CSI: Cyber’s season 2 opener entitled “Why-Fi”, the FBI's Cyber Crime Division has been tasked with investigating a string of high-profile hacks on corporations that have resulted in the theft of sensitive financial information. Avery Ryan (Patricia Arquette) leads the investigation, and she is assisted by a team of technology experts.

The first hack at a pharmaceutical company leads the team to suspect a disgruntled employee who was recently fired from the company. But their investigation takes a turn when they discover a string of similar attacks that have targeted several companies in different industries.

The team finds that the attacks are all connected by a common vulnerability in the companies' Wi-Fi systems. They suspect that the perpetrator is using a sophisticated hacking tool to exploit this vulnerability and gain access to sensitive information.

As they continue their investigation, the team discovers that the hacker is part of a larger network of cyber criminals who are sharing information and tools to pull off these high-profile hacks. The FBI realizes that they are dealing with a much larger threat than they initially anticipated.

Avery enlists the help of her friend and mentor, D.B. Russell (Ted Danson), who is now working in the FBI's Cyber Division. Together, they use their expertise to track down the mastermind behind the hacks.

In their pursuit of the hacker, the team faces several challenges, including a data center fire that destroys critical evidence. But they persist, and with the help of some new technology, they are finally able to locate the hacker's hideout.

The team's investigation leads them to a shocking discovery: the hacker is a teenager who has been recruited by the cyber criminal network. He had no idea that his actions could have such devastating consequences.

In the end, the team is able to apprehend the hacker and shut down the cyber criminal network. But they are left with a sense of unease, knowing that there are many other vulnerable systems out there and countless hackers who are willing to exploit them for personal gain.

“Why-Fi” sets the stage for CSI: Cyber's second season, with a storyline that explores the darker side of the internet and the dangers that lurk in the shadows of our increasingly interconnected world. The episode is a thrilling ride that will keep viewers on the edge of their seats until the very end.