Regarding the mid-season finale, I stand by my assessment that this show is nothing but a lot of flailing about by the characters. There is almost no logic to their actions. They move from one tension-less manufactured crisis to the next like marionettes forced to go through the motions.
And it's cheap and lazy writing to have three characters go crazy: Chris, Celia and Daniel. Chris could maybe be explained away, but regardless his descent into madness seemed to happen overnight and it's not that compelling. Celia on the other hand is just a cartoon character in the way she responds to the zombies. Totally unbelievable. Same with Daniel, who we are to believe is a hardened veteran of Latin American death squads yet suddenly snaps and starts to see his dead wife everywhere.
And what was with Nick running off at the end to rejoin the zombie hoard simply because his feelings got hurt?
Totally ridiculous. Here's hoping the writing staff gets cancer.