Continuity mistake: Scott becomes more monstrous due to his new Alpha status. He even says that he now has extra fangs but later in the series, these fangs are gone with no real explanation to what happened to them.
Teen Wolf (2010)
1 continuity mistake in Season 4 generally
Starring: Dylan O'Brien, Tyler Hoechlin, Holland Roden, Tyler Posey
Revealing mistake: When Derek is training Isaac how to fight, Isaac is forced to repeat his approach many times, which results in him being smacked down by Derek. During certain shots, as Isaac is about to plummet to the ground, his hoisting wire can be seen. (00:12:35)
Trivia: This is Colton Haynes' third time playing a supernatural creature. He was a Werewolf in "The Gates" and a Jackal in "Nine Lives of Cloe King."