I really liked the episode, not only because they kinda "closed" the pilot's storyline with Morgan and Duane... but because in the meantime the show explored a little bit into other alternatives, other "paths" and reactions to the whole zombie scenario. What I mean is that here you've got the "lone-wolf" situation, something that we do not see due to the protagonists dealing with things collectively or at least collaboratively, Morgan being forced into absolute loneliness, losing his loved ones and still finding a purpose (in a wicked and sad way yes)... to clear, to clear zombies and hunt them down.
I liked it.