Ep 5. Time Will Tell

In Castle season 6 episode 5, titled Time Will Tell, Castle and Beckett are investigating a strange case where a man with no history suddenly appears claiming to be a time traveler from the future. The man, whose real name is Simon Doyle, seems to know everything about the present and the future, including the details of a murder that has not taken place yet. He also claims to be on a mission to prevent a catastrophic event that could destroy the world.

At first, Castle and Beckett are skeptical about Simon's story and think he might be a conman or a delusional person. However, the evidence he presents, such as a futuristic device that can predict earthquakes and a sample of a rare mineral that hasn't been discovered yet, seems to support his claims. Castle, being a science fiction writer and a fan of time travel, is particularly fascinated by Simon's story and eagerly wants to help him.

As they dig deeper into the case, Castle and Beckett discover that Simon has a connection to a notorious criminal called Jerry Tyson, aka 3XK, who has been haunting them for years. They also learn that Simon's real mission is not to save the world, but to kill someone who will cause a lot of suffering in the future. However, Simon's identity, motives, and allegiances keep shifting, leaving Castle and Beckett unsure of whom to trust.

In the meantime, Ryan and Esposito are dealing with a personal crisis as Ryan's wife goes into labor earlier than expected, and they have to deliver the baby in a remote cabin with no medical equipment or help. This subplot adds some humor and tension to the episode, as both detectives struggle with their lack of experience in delivering babies and their conflicting egos.

As the clock ticks and the stakes get higher, Castle and Beckett race against time to stop Simon from carrying out his deadly mission and uncover the truth about his past and future. They also have to confront some uncomfortable truths about their own relationship and how they perceive each other's ambitions and priorities.

Overall, Time Will Tell is a thrilling and emotionally complex episode that showcases the best of Castle's blend of mystery, sci-fi, and character-driven drama. It also sets up some major arcs and surprises that will resonate throughout the rest of the season.