Rebeka Montoya

An eccentric police consultant is brought into the SBPD to interview Shawn, Gus, Lassiter and Juliet about their seemingly poor police work on a tough case.

A beloved former professional baseball player is murdered; Alexis' genealogy project forces Castle to contemplate the identity of his father.

Calvin decides to splurge on an expensive jacket, then worries it's too special to risk wearing outside the house. Also, Dave and Gemma worry their new friends' daughter is a bad influence on Grover.

Jack, Randall, Kevin and Toby struggle to connect with their children.

Kevin takes the twins to the cabin in hopes of proving himself as a father.

To stop a dangerous virus from spreading, Team Scorpion must locate a rare endangered monkey in the Amazon that has the antibody for the cure. Also, Toby and Happy see a counselor (guest star Penn Jillette returns) to prepare for matrimony.