Started watching this on lock down, now on season 5. Loved everything I ve seen with Nathan, loving references to previous shows and actors, Slaughter made me Laugh as did space cowboy and joss whedon ref's but this show isn't Castle without Beckett. The writers did an awesome job but all I was waiting for was them 2 to get together, after that nothing new, funny lines that were predictable. The show had its day as great as it was. The Rookie is now my favourite show, Get Beckett on there that would be fun