I feel the whole season is problematic compared to the previous seasons, seasons 2 and 3 were really good. But the Lexi character is weird and Tom and his family all becoming super hero's is a really negative turn for the series. Season 4 and most of the episodes didn't really click for me. I hope season five will be a good one, as it is the final season and needs to resolve it self with really good episodes and a good ending. As with a lot of finales they are somewhat less then satisfactory.