Ep 21. Ain't Nothing Like The Real Thing

Sherlock and Joan investigate the murder of a man who had been in the process of creating an artificial intelligence bot. The AI is now missing, and the team must determine who has it and what their intentions are. As they dig deeper into the case, they discover a tech company with questionable practices and a CEO who is willing to do anything to keep the AI out of the wrong hands.

Meanwhile, Sherlock struggles with the idea of becoming a father after he learns that his former lover and now-fiancé is pregnant. He becomes increasingly anxious about whether he will be a good parent and how having a child will change his relationship with Joan.

As they work on the case, Sherlock and Joan continually clash with the NYPD detective assigned to the case, who sees their methods as unconventional and unproductive. However, they persist in their investigation and eventually make a major breakthrough that leads them to the missing AI.

In the end, Sherlock and Joan are able to solve the case and recover the AI, which they believe has the potential to revolutionize the tech industry. Sherlock also comes to terms with his impending fatherhood and begins to see it as a new adventure, rather than something to be feared.

Overall, "Ain't Nothing Like The Real Thing" is a thrilling episode of Elementary filled with complex characters, intense investigations, and a healthy dose of emotional drama.