Chuck First Look: What's Sarah's Big Secret?

Sarah’s concealing a doozy of a secret on Chuck, and her hubby is making it his personal mission to uncover it.

On the heels of last week’s mysterious baby bombshell, Sarah abruptly scurries off to Hungary to head off at the pass whatever evil plan Shaw has set in motion — leaving Chuck to piece together what few clues she left behind.

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“I’ve done some research on Hungarian culture, cross-referenced with general, horrible things Sarah might want to keep a secret,” Chuck tells Morgan in the following clip from Friday’s episode, which marks the introduction of Sarah’s first handler (played by White Collar‘s Tim DeKay) as well as her mother (Charlie’s Angels‘ Cheryl Ladd).

Watch the clip below and hit the comments with an answer to this question: What do you think Sarah is hiding?!