Chuck and Sarah's Valentine's Day is put on hold when they must travel to England to protect an oil baron's daughter. A mysterious woman makes Casey a compelling offer. Ellie and Devon receive parenting help from an unusual source. Join us for our discussion of the 16th episode of the fourth season of Chuck, Chuck Versus the Masquerade, which originally aired on February 21st, 2011. It was written by Rafe Judkins and Lauren LeFranc and directed by Patrick Norris.