Credit: Christopher Heyerdahl / ABC Television Group © 2012 Disney Photo: Castle Looks Confused in Castle Season 5, Episode 16: "Hunt"

Is it finally coming true — is Rick Castle going to meet his father in the conclusion to Castle Season 5's two-part episode? It certainly seems that way! Here’s what we’ve got so far:

In the sneak peek, Richard encounters a strange man in the middle of woods, amidst several dead men. The man appears from almost out of nowhere, wielding a weapon, while Castle looks scared for his life.

“If I wanted you dead, you’d be dead,” he says to Castle.

The mystery man then tells Castle to get in the car and go with him, as he knows what’s going on. After Beckett calls Rick with news that Alexis’s kidnapping was planned, our mystery guy destroys Castle’s phone and tells him to “trust” him.

We already know that Castle’s father makes an appearance in this episode, and aids in the recovery of Alexis. Is this stranger in all black the one-night stand Martha had oh-so-many years ago? We definitely believe so! In the ABC behind-the-scenes photo, we get a good glimpse of guest star James Brolin decked out as Grandpa Castle, and we can’t wait to see how the story unfolds.

Check out the sneak peek and tell us if you will tune in for the epic conclusion!

Original Air Date: Castle Season 5, Episode 16: "Hunt" airs Monday, February 25, 2013 at 10 p.m. ET on ABC.