Credit: Karen Neal/ABC Television Group (c) 2011 Disney Photo: Castle Talks to Martha and Alexis in Episode 3.17, “Countdown”

So, Castle and Beckett are still trapped in the giant freezer with Jamal Alhabi’s dead body. The dirty bomb was driven away by bad guys, and Agent Fallon and Montgomery are being accused of racial profiling for bringing Jamal’s Middle Eastern employees in for questioning. It’s not such a good day. But! Alexis and Martha come back from their weekend sojourn early. Alexis calls Ryan (adorable!) to tell him dad is missing, and he and Esposito try to convince Montgomery that it might be a good idea to look for their two star detectives. Monty thinks they're just out having a cold one. Ha! Really what they're doing is...

Imitating Jack and Rose from Titanic: Our heroes are being worn down by the cold and as they cuddle for warmth, the big revelations begin. “I always thought being a cop, I’d take a bullet,” Beckett says. “I’m sorry for being me,” Castle replies. And just before she passes out, Beckett gasps, “I just wanted you to know how much I lo...” And then a commercial. And then...

Josh Shows Up and Beckett Loves Him Again: Well, well, well. Look who doesn’t need to go to Haiti after all. Ryan and Esposito found their buddies in the freezer, and Josh and his stethoscope arrived as back up.  Figures. Castle wakes up from one nightmare and enters another as Josh and Beckett canoodle at the scene. Fallon gives Castle and Beckett some grief for going rogue, even though they tell him that the bomb is going off at 4 p.m., cab driver Kevin McCann is involved in all of this, and that maybe he was using his now dead employers (Amir and Jamal Alhabi) to steer the terrorist investigation a certain way. But the thing is...

Kevin McCann Is Dead: After going to McCann’s former residence and talking with neighbors, the team discovers the real Kevin McCann was in the Army Special Forces and did six tours of duty in Afghanistan before dying at a VA hospital two years ago. His identity was obviously stolen by this cab driver, but what makes it interesting is that the money from Amir’s account was traced to Afghanistan in the last episode. These two must be linked somehow. Castle, Beckett, and Fallon meet with McCann’s sister, Charlene, who identifies the photo of the cabbie as Radford Hayes, her brother’s best friend who also served in his unit. Oh, and one other small detail. Radford, frustrated with his fellow citizens’ apathy towards war and the government's treatment of soldiers, told Charlene the country “needed another wake up call.” Well then. They trace Radford’s cell phone and confront him in the street...

Credit: Karen Neal/ABC Television Group (c) 2011 Disney Photo: Agent Fallon and Beckett Question a Suspect in Episode 3.17, “Countdown”

And, As Suspected, This Guy Is Intense: During interrogation, Radford insists to Beckett and Fallon that when the bomb goes off, they'll find a terrorist, not a patriot like him! Fallon knocks him to the ground and holds him at gunpoint, and then Beckett holds Fallon at gunpoint. Beckett and Fallon get into a bit of a tiff over this, while Radford seems remarkably unaffected. (At this point, Ryan interjects that Fallon’s wife was killed on 9/11 and that’s why he’s so hyped up all the time.) Afterwards, Castle points out that if Radford knows a terrorist will be found, his team must be pinning this on somebody. With Amir and Jamal dead, it’s probably someone close to them. C&B head to Amir’s house and find Fallon’s surveillance dude shot in the head, and Amir’s wife, Nazihah, missing in action. There’s a note: “God is great. I go to my glory against the forces of the infidel.” She's been framed, and of course, there’s no way to trace her...

So Thank Goodness Castle Still Has Fariq Yusef’s Card: Esposito discovers that two guys from Radford’s Special Forces unit, Evan Bauer and Jack Cochran, could possibly be involved in the plot. We then conveniently cut to a scene of those two guys telling Nazihah to drive the van to the location they specified. There’s a camera installed on the driver’s side window so they can watch her. If she completes the task, she gets her baby back. Isn’t that how it always goes? Meanwhile, Castle calls his old pal Yusef from the Syrian consulate. Yusef insists that he wasn’t spying on Nazihah or Amir, but if the detectives happen to go to a red brick building on 158th and Franklin, it might be worth their time. They do just that and watch on the monitor as Nazihah is driving nervously through the city. And then...

We Find Out Who to Call in A Bomb Diffusing Pickle: Bauer and Cochran crack: The van is headed for Times Square. Of course, C&B are the ones to stop Nazihah in the street, and they discover there’s only two minutes left before the bomb explodes. Obviously. Beckett tries to send a pic of the bomb to Fallon’s phone so he can tell them how to diffuse it, but that doesn’t work. That doesn’t work for just so many reasons. With fifteen seconds left, C&B hold hands and brace themselves. At the last second, Castle just pulls all of the wires out and the city is safe once again. What’s even more dramatic, though, is that...

Fallon Says Goodbye, Josh Says Hello: So, everyone gathers at the station for a beer to celebrate. This seems like ten minutes later. Fallon bids adieu, because he can’t hang out for even an hour longer than he has to. “What I do is not who I am. It’s just how I have to be. I hope you both understand that.” Uh, sorta. Then, just as Castle’s about to ask Beckett something big, Josh walks up again. This guy. Beckett looks conflicted, because this is the never-ending conflict.