Plot hole: When Katty is first discussing the dead girl from the plane crash who had brains in her stomach, she says the girl's flesh indicated she died months before she ever got on the plane. But then later in the episode, Katty says the plane crash girl was at the boat party (massacre) the day before she got on the plane. Everyone at the boat party was alive before dying and turning into a zombie, so the girl's flesh would not indicate she was dead for months since she only died the day before.Bishop73
Character mistake: Vampire Steve says the safe has over a trillion possible combinations, but it's only a 6-digit code, which is only 1 million possible combinations. Even if letters could be used in the combination, that would only be a little over 2 billion possible combinations.Bishop73
Continuity mistake: When Liv and Peyton are talking in the morning, Liv is holding her coffee mug and her left hand is on the counter. When Peyton says the cover picture looks like a monster and the shot changes, Liv's arms are now crossed and she's holding the mug higher up.Bishop73
Revealing mistake: Near the end of the episode, a zombie hating teenager barges into the church to assassinate brother love. He ends up shooting a choir member instead. Although the gun goes off, blood splatters as if it were a head shot, and the man collapses, there is no point of entry. They forgot to CGI the headshot.