Martha is making room for little Castle babies.
We could relax, have a glass of wine, share a shower...
Our victim is on Mars?!
Psst--Castle, even when you whisper, everyone can hear you.
Castle's talent may be the only thing that can solve this case.
3XK may be after Martha and Alexis.
Castle thinks he's lost Kate forever.
Jerry can't outsmart Castle this time.
Every time I close my eyes I see your face.
Castle gets to return to her side in both life and work.
Beckett's been thinking about it...
They had wanted to be at the precinct that entire time.
How's it feel now, Jerry?
Castle knows what inspired all 3XK's murders.
Too bad this wasn't the right favor to ask for.
Castle just satisfied his first customer and is ready for another.
His tía is a big fan, you see.
Castle is proud. Esposito has an embarrassing detail to share.
Beckett, you're actually following HIM.
Castle thought they had something special.
Just this one time, Caskett agrees to be naughty.
It's bedroom time and the Sherlock hat stays on!
You. Me. Theorizing. Together. It's not right!
Partners here to stay? Beckett is jubilant, but Castle's heart is broken.
This was not on purpose. And it hurt.
A whole lot of lying is about to go down.
Ryan remembers their engagement like it was made up just now.
They both deserve the best... with someone else.
Castle and Beckett have now officially moved in together.
Kate and Lanie toast to the best apartment ever.
This is the best night ever.
His name's Ryan and he hates lyin'.
Drinks are on Castle!
Ryan and Esposito talk fatherhood and moving forward.
What Javi has with Lanie is real.
The team's reaction is... not joyous.
If Castle survives this, he's giving this place a scathing review on Yelp.
Careful, Castle! Insults aren't taken lightly in the Old West.
Mrs. Castle, may I have this dance?
Mr. Castle, you saved my life! Why?
Castle is SO not OK with any of this.
Richard Castle introduces his new spine-tingling, bone-chilling thriller.
Do you have any low calorie fairy dust? Mm, thank you.
Which may involve leaving a "frog breath" sign on Jason's back.
She's spent way too much time having to be an adult.
And you thought Zombie Apocalypse Survival Camp was a waste of time.
He's just moonlighting at Men-Hattan!
I've always loved you. Always.
Castle and Beckett discuss their timeline.
Some mysteries aren't meant to be solved.
Kate never thought she'd see him again.
We can't just... pick where we left off, can we?
A wounded Kate gets reason to believe Castle.
This Santa may enter through the heart, but he exits through assault!