Episode 307 Spoilers: Chuck vs. the Mask; 2/8/2010
1/23/10: CHUCK MUST PROTECT HANNAH WHEN THEY FIND THEMSELVES PARTNERS ON A MISSION. Chuck and Hannah unexpectedly become part of agent Daniel Shaw's (guest star Brandon Routh) latest mission. Much to Sarah's chagrin, she gets paired with Shaw, who seems to be trying to get close to her. Meanwhile, Morgan and Ellie continue their mission to get to the bottom of Chuck's secretive and strange behavior.
From NBC
1/13/10: "Chuck and Hannah (Kristin Kruek's character) share not only a kiss, but they then go on to treat the Buy More's Home Theater Room like a no-tell motel. Meanwhile, Shaw (Brandon Routh) and Sarah have one of those, "Oh my god we're gonna die, so I may as well tell you I love you" moments... Kristin's character Hannah is so not what she seems, and I don't think she's long for Chuck's world. (Especially since she was nowhere in sight when I visited the set last week. Aces!)"
From Kristin