Nurse: Uh-huh. Family medical history? Let's start with the father.
Dean: He's dead.
Nurse: Cause of death?
Castiel: He was stabbed through the heart, and he exploded.
Dean: Okay, you know what? We don't have time for this. All right, he's sick. His name is Jack Kline. His father exploded. There you've got all the basics. Now what does he need to do to see a doctor?
Jack: I'm Jack. And I know people have a lot of strong feelings about my father, but I'm -- I'm trying hard not to be like him.
Rowena: It's as I suspected. A Nephilim for all it's power, is an unnatural presence. Part human, part angel... It -- it doesn't quite fit. It's delicate. Its grace is what holds it in balance, and when Jack's grace was taken from him, his being fell into chaos. The -- the cells are gobbling each other up.
Castiel: Well, if it's grace he needs, he can have mine.
Rowena: No, dear, it won't do. Jack is part archangel. He needs a stronger force and probably some kind of magic, and needs it quick. I don't... I don't exactly know but he's enterin' a critical phase. Sometimes he'll look just fine, but then his body will give way and... it'll be the end of him.
Jack: Since I've been alive, everyone assumed that I would be this special 'person' who goes on forever. Only now it looks like forever might be a couple of weeks, so --
Dean: We don't know that.
Jack: What I do know is I'm done being special. Before my life is over, I want live it. I-I just want a chance to... get a tan... tr see a hockey game... get a parking ticket... get bored... and when it's all over... die.
Castiel: I, uh... I feel the need to do something. And I think Dean's right. We can't afford to overlook any possibility. He seems to be taking this particularly hard.
Sam: Yeah, yeah. Yeah, he -- he, uh, was pretty rough on Jack at the beginning, and... I don't think he's forgotten. And I know he hasn't forgiven himself. You know, he's lost people, we've all lost people, but, um...
Castiel: This feels different. Losing, um... a son... feels different.
Dean: Well, bait and beer. You are a cheap date. This certainly isn't Tahiti.
Jack: You once told me you and your father did the exact same thing. It was your happiest memory of him.
Dean: I didn't say that.
Jack: It was how you said it. I could tell. I guess my point is that... if I don't make it... The stuff I'd miss -- it wouldn't be things like Tahiti. Or the Taj Mahal. I'd miss more time with you. I'm getting that life isn't all these big, amazing moments. It's time that together that matters. Like this.
Dean: Well, who'd have thought hanging out with me would make you sentimental?
Frank: I was outta my head that night! I -- I wouldn't kill anyone.
Nick: I know. I know. You were possessed. Yeah, this -- this -- all this, it's not your fault. But this was the hand that murdered my family. And even if it wasn't you. It was still you. I can't let that slide.
Nick: All right. I'm not very good at this, but the priest said it would help so I'm gonna try. I say that I do the terrible things I do because I do because I couldn't find who killed Sarah and Teddy and once I did I'd be free of this darkness and rage. I lied. Truth is, I like doing these things and I don't want to stop. I'm bonded to you and what you are. It's how you first found me. I don't know who I am if I'm not you. No consequences, no pain, no sorrow. I want that back. I want it back. I don't want to feel now what I didn't feel then. Where are you? Where are you? Help me. Help me.
In this episode Sam asks Rowena if she remembers who Jack is, only shaking her head that she does not. But appears somewhat shocked to learn he is Lucifer's son. However, in
13.21 Beat the Devil Rowena says to Lucifer as she is using his grace to open the rift:
- "Do you know what your grace is making possible right now? The heartfelt family reunion of Sam, Dean, Cas, Mary, and your very own son Jack. That's right. Your wee boy's over there, and he'll be so glad to see his three fathers. Of course, as far as he's concerned, they are his father. And you? You're nothing to him."
A possible explanation is that she didn't realize that the Jack they were talking about was Lucifer's son Jack at first, as she had never met or interacted with Jack outside of seeing him come through the rift.
This is the first episode where
Jack uses his mother's surname "Kline."
Dean also gives his date of birth as May 18, 2000. While May 18th is actually Jack's birthday, Dean adjusted the year to make it seem more plausible, though he briefly fluctuated between 1999 and 2000 when choosing the year. This makes Jack's claimed age as currently being eighteen.
Sergei tells
Castiel he was given a vial of
Gabriel's
grace in exchange for a cloaking
spell that allowed him to mask his presence in Monte Carlo with the porn stars. Castiel comments that he knows this, a reference to
13.18 Bring 'em Back Alive when he had read Gabriel's story from where the archangel wrote it on the walls in the Bunker.