I saw it for the first time yesterday at my parents house. I love post-apocalyptic movies and liked this show... the only thing I hated about that episode.
Spoilers:
The new guy that walked into the building with his own key they
should of kept around. He was good to keep around because he was
muscular... there's always need for more muscle to lift things and
defend the base... and he made a statement that I liked "If I
leave here to find survivers..." He showed he had a concern for
other people that a lot of the people on the show don't seem to
have."