Castle Castle

It's going to be a rough couple of episodes for Rick Castle.

First Look: Castle finds his father... but loses his daughter?

Castle Scoop: Who's playing Rick's father?

In our exclusive first look at the episode, Castle and Beckett meet Agent Harris for the first time — before Castle even knows Alexis is mixed up in this mess. Do you think he'll be able to take Harris' advice to heart once he learns the truth?

Watch the sneak peek below. Castle airs Mondays at 10/9c on ABC.