This show has all of the ingredients to make viewers keep coming back for more.  It has a superb cast, great storyline, villains, heroes, and characters you love to hate and others you hate to love.   Each time I think I have something figured out, it throws me for a loop.  It is my favorite show, and that is saying something since I watch a wide variety of shows.  I especially love Donald Sutherland, the "HERO" figure whose name escapes me, and it is great seeing Blair Underwood in this type of role.  Here's hoping this show stays on for a long time to come....