You know, I guess it is my least favorite season. It's not as intense as the preceding two nor the two that follow it. As a matter of fact, Glenn Close and Anthony Anderson are basically the only super-high points of the season, and without them, it just would have been kinda mediocre.
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I also think that how they got Antwon Mitchell in the end was kinda deus ex machina-y--a convenient excuse mentioned as a side plot in a few episodes, but not really a part of Antwon's main storyline. This also jarred me during my first viewing. I recalled it as being one of the weakest plot turns of the series
Already in season 5, and the difference really is night and day. Forest Whitaker is insane. Such a great antihero. or antivillain. Or whatever.
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And since it is a key point of S5, after watching the series twice, I find it somewhat difficult to accept that Vic would have killed Terry Crowley in the first place. Everything that's taken place since then shows that Vic is way smarter than that, and I am sure he could have handled the situation without killing him.