Basically Chuck finds his dad, his dad dies, chuck and Sarah get married, Casey finds his daughter who dates Morgan, Chuck finally finds his mom and must rescue her from the original subject of the intersect project who accidentally turned evil, and then they hint that dad may be alive after all for the final season.

I wonder if the decline of the strong hero has anything to do with the the seeming impotence of military might on today's world affairs. Afgahnistan, Vietnam, and the wars against terrorism and drugs pit powerful militaries against shadow forces who simply skink off into the night to rise again anytime a mortal wound is given. It's like fighting a hydra and taking them down has to rely more on accurate intelligence and electronic tracking. So maybe our heroes are now being expected to fight smarter, just as we are.