I don't know if you guys saw,but there is a preview to the next episode at the oficial website(http://nbc.com/American_Dreams/).
unfortunately my computer cannot paly it....so I would really apreciate if someone describe each part of it for me.
thanks in advance

Here is a transcript and shot-by-shot description. Be warned, as with many of the (in my opinion) horrible promos for American Dreams, huge spoilers for the episode, so if you do not want to know what happens, do not read the following:

.
.
.
.
.
.

"The new year brings an all new American Dreams.
[shots of Meg and Sam and the college and protesting]
"As a country begins to change"
[shot of Meg and Chris]
"A daughter faces betrayal."
[Meg looking upset/bewildered]
Meg: "You lied to me?"
[shot of Meg attacking throwing something at Chris]
Meg: "Get out!"
[scene with Meg and JJ (in uniform) walking down a street]
"And, a war hero will make"
[JJ holding the baby]
"The biggest decision of his life."
[Close up of JJ]
JJ: "Marry me."
[shot of a smiling Beth]
[shot of JJ and Beth kissing]
"All new American Dreams, NBC next Sunday"

thanks a lot tvobscurities!!!!!!!!!!

Just saw a shortened version of this promo on NBC (watching ER), along with promos for the other Sunday night shows. Good to see the network promoting the show.