We still don't know when Chuck will come back to NBC.

But we do know a bit more about the roles Brandon Routh and Kristin Kreuk will play on the show, once it actually does make its triumphant return.

According to E! News, the main episode to keep one's eyes on will be number seven. In it, Chuck and Hannah (Kreuk) do more than just make out: they get busy in Buy More's Home Theater Room!

Meanwhile, Shaw (Routh) and Sarah get stuck in a dangerous situation and express intense feelings for one another.

But there's good news for Chuck and Sarah fans: Hannah is not what she seems. She won't be with Chuck for very long.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.