Chuck Challenge: Chuck vs. the Masquerade

Isn't it romantic? Valentine's Day arrives a little late on Chuck, but it still brings flowers, romantic comedies, and a "Love Machine" t-shirt. Unfortunately, the holiday is quickly overshadowed by a new mission involving Volkoff's daughter, a masquerade ball, and many a heart-rending moments, as Chuck and Morgan move into adulthood. See if you can recall all the details!