Not as good as the first one, but I honestly didn't expect it to be. There's not much you can do with the zombie genre that hasn't already been done countless times before, and so Peninsula is another film about a military community with hordes of zombies roaming outside. And yes, some human characters behave worse than the actual monsters.
Four years after the zombie outbreak, Jung-seok, together with a small team, has to go back to the place where it all started, retrieving a big load of cash that was left behind. It sounds like an easy job, but they clearly underestimated the amount of zombies still roaming the place. The people who survived the zombie plague aren't too welcoming either.
More action than horror this one, with mediocre CG car chases and lots of fire weapon action (the lame kind). The zombies are pretty generic, the horror elements are very limited and there's a bit too much melodrama, but the pacing is decent enough and the film serves a nice enough adventure. Decent filler, but nothing more.