Castle got off to a very strong start with "XY." The dual perspective of the episode an enticing entrance that will set off a season long arc, something the series sorely needed.
Overall, this episode was well-rounded. It had a little bit of everything for the Castle fan. It was good to see Castle with kids—no doubt this will probably spark another discussion kids in the future.
While investigating the murder of a young woman, Castle and Beckett find evidence that links her death with Senator William H. Bracken (guest star Jack Coleman returns), the man responsible for Beckett’s mother’s murder. Determined to finally bring Bracken to justice, Beckett soon realizes that things are far more complicated than they seem.
Castle returns with a change of city and jobs for Kate Beckett. After saying "yes," Beckett moved to D.C. where her job with the AG's office isn't going as well as she hoped.
“The G.D.S.” picks up almost immediately after the events of “And Justice for All…” and sees Castle go on a quest to recover his lost time. But what he finds at the end of it all, may have dire consequences for him and Beckett.
In the second episode, Castle and Beckett are struggling to find there way back after Castle's return. This episode while slightly better than than "Driven," still leaves a lot of open questions, something that could drive casual viewers away from the show because they have no idea what's going on.
When Beckett is assigned to protect Erik Vaughn, a charming billionaire entrepreneur whose life is in danger, she’s forced to reflect on her relationship with Castle which has begun to plateau. Meanwhile, consumed with jealousy, Castle goes to extraordinary lengths to solve the case and separate the two of them.
Beckett’s life is on the line when she steps on a pressure sensitive bomb. While the team searches for a way to disarm the explosive, Castle distracts Beckett by arguing with her about who fell for whom first.
The episode is better than "Private, Eye Caramba" but not nearly as good as "Castle, P.I." Unlike the previous episodes this season, this is the first episode I rewatched for the fun of it. And I felt better about it the second time around.
A sniper on a killing spree is terrorizing New York City. With the clock ticking down to the next murder and nothing to go on except a killer with no apparent motive but to instill terror, this could prove the team's toughest case yet. The hunt is made even more complicated when Beckett begins to experience increasingly strong moments of PTSD - moments she tries hard to hide from Castle and the detectives.