Buckle up, Castle fans. Things are about to take a turn for the serious on Monday's "Target."

The first hour of the show's annual two-parter, this episode will first focus on a seemingly typical murder investigation, as the team is on the crime scene in the following sneak peek:

 

Castle Clip: Man vs. Van

But a further examination of a surveillance video makes it clear this case is anything but ordinary, as Beckett, Castle and company witness an abduction:

 

Castle Clip: Caught on Tape

Finally, it's a father's worst nightmare, as Castle and Beckett follow up on the missing girl, only to learn that Alexis was also involved. In the worst way possible:

 

Castle Clip: A Father's Nightmare

Visit TV Fanatic soon after this Castle Season 5 episode airs for our weekly recap and review!

Source:
http://www.tvfanatic.com/2013/02/castle-sneak-peeks-a-fathers-worst-nightmare/