An era of the series has ended, but as always, Doctor Who continues moving right along.
It gives the initial impression that it will be nothing more than a creepy “monster of the week” adventure for the Doctor and his friends.
“42” seems to have a few elements working against it: It’s highly reminiscent of “The Impossible Planet”/“The Satan Pit” from Season Two.
Despite being the 10th Doctor story and the debut of the season two production block, “The Christmas Invasion” feels like a coda for season one.