Source: MSN TV [follow link for complete column]
MSN TV: Tonight's Picks Monday, May 2, 2011
8:00 PM, NBC
Chuck and Sarah (Zachary Levi, Yvonne Strahovski) look forward to their bachelor and bachelorette parties, but Chuck's doesn't go as planned when some uninvited guests show up. Ellie (Sarah Lancaster) makes a potentially life-changing discovery while investigating her father's computer. Ryan McPartlin also stars in the new episode "Chuck Versus Agent X."