SPOILER ALERT: The following story reveals major plot points from tonightsFBIandFBI: Internationalcrossover event onCBS.

Luke is patient and strategic; he always knows when its best to play the long game.

DEADLINE: Jeremy and Luke, what was it like going to Rome and meeting for the first time?

Jeremy Sisto as Assistant Special Agent in Charge Jubal Valentine and Luke Kleintank as Special Agent Scott Forrester.

Jeremy Sisto as Assistant Special Agent in Charge Jubal Valentine and Luke Kleintank as Special Agent Scott Forrester.Stefano Montesi/CBS

JEREMY SISTO:Yeah, we got crazy in Rome!

No, not really.

Everyone was beautiful, you should know that.

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(L-R): Eva-Jane Willis as Europol Agent Megan “Smitty” Garretson, Carter Redwood as Special Agent Andre Raines, Luke Kleintank as Special Agent Scott Forrester, Shantel VanSanten as Nina Chase, Jeremy Sisto as Assistant Special Agent in Charge Jubal Valentine, Heida Reed as Special Agent Jamie Kellett, and Vinessa Vidotto as Special Agent Cameron Vo.

We shared some dinners and we shot all around Rome.

It was really great.

LUKE KLEINTANK:We shared a lot of stories and it was nice to meet Jeremys family.

Man, youve got some cool kids.

We did a lot of night shoots together, and, at one point, we were delirious.

We shared a green room and we had these two little beds next to each other.

Jeremy showed me his music, hes a great musician.

If you havent heard his music, you should check it out.

Their show is a version of what we do but in a different environment.

Working with that other sensibility and culture was energizing for me.

It was really quick for us to get into a good rhythm together.

Everybody did such a great job.

Thats the caliber we make a run at hit with each episode.

Youre gonna see that in the next episode and the next episode.

You know, its not fair because we have Europe as a backdrop so its not just New York.

So, in the lens that looks amazing.

DEADLINE: Jubal and Scott complement each other perfectly.

KLEINTANK:Yes, always listen toFBI: International.

Anything he thinks of, he has somebody able to do it.

Any question he has, its usually answered before he can get the words out.

So trying to get access to people who arent necessarily on your side is challenging.

I understand why the Roman police sergeant gets a little perturbed by Jubal who feels entitled to access.

He deals with these European detectives and lieutenants and he tries to find a way in.

So in this episode, I can see why Jubal was doing what he was doing.

I can relate to the guy and I wanted to do exactly what [Jubal] wanted to do.

But I was also trying to play the politics of it all.

It was a tough one for me.

KLEINTANK:Forrester has some people from Season 1 coming back into his orbit that threatened his life.

So he has to navigate that across a couple of episodes.

Were also introducing somebody to our universe that potentially could stay or not stay.

And thats as much as Ill give.

SISTO:Am I the one that might stay or not?

Just let me know, ok?

Is this Dick Wolfs way of letting me know, during this Deadline interview?

He had a partner that comes back into play in an upcoming episode.

Hes an old friend and hes somebody that has a complicated history and Jubal has mixed feelings about him.