The Light Of Daye

I remember thinking that the plot seemed to flounder during seasons 2 and 3, but 4 and 5 are jam-packed with character development and the unfolding of so many converging storylines. I love Jessie and Jane as characters and I remember being in complete shock that Jane died--especially the way she died and Walt's role in it. That's probably the turning point for where I lost all sympathy for Walter White.