I think this was possibly my favourite episode so far. I really liked the interactions between Castle and Beckette. He clearly cares a lot about her because he wants to help her find out who killed her mother, although you just know she's going to be really annoyed with him, initially!!
The scene at Castle's apartment was just hilarious. He's like a big kid !!
Episode 6
I thought it was hilarious when they were all in the warehouse and wearing their bullet proof vests; They all had "police" on theirs and Castle had "Writer"