'Castle' Season 7 is in full swing as fans are exciting to learn what's going to happen further down the storyline. Beyond that, the last few episodes of the series have left fans in suspense.

In the latest episode of 'Castle' Season 7, entitled 'Child's Play', guest stars Natalie Barnes (Bess Rous), Elya Baskin (Segei Vetotchkin), Emily (Rachel Eggleston), and Prinicipal Silva (David Barrera), appeared.

The synopsis released by ABC of Episode 4 reads, "When an ice cream vender is shot, evidence leads Beckett and Castle to believe that an unknown second-grader may have vital information about the case. Castle goes undercover at an elementary school to try and identify the second-grader but nothing goes as planned."

According to Hypable, viewers can hope that Beckett will interact with the young children and feel some motherly emotions. It also noted that Alexis and Kate may have some bonding time between them as Castle goes to school, undercover.

Previously, it was mentioned by Molly Quinn to TVLine that there will be some tension between Kate and Alexis due to the condition of Castle's car in the finale of last season.

"This season the house gets crowded ... especially in this first episode that we just finished filming there's some Alexis/Kate tension," she said to TV Line, "We had that nice heart-to-heart [talk last season], but we kinda forget about it, but it will come back and things will heal but it's a tough relationship, you know."

Additionally, the TV.com synopsis for the episodes reads, "Castle goes undercover at an elementary school to find the second-grader who may possess information about the shooting of an ice cream vendor,"

Fans can expect to catch the next Season 7 episode of 'Castle' when it airs on October 27.