While preparing for the school choir performance and hoping his friends will actually attend, Fez daydreams about elaborate musical numbers.
Donna questions her relationship with Randy, Jackie confronts Fez for lying to impress women at the salon, and Red gives Donna his blessing to move on from Eric.
Morgan, Sidle and Finlay try to relax at a forensics conference when a mass shooting occurs on site.
The CSIs investigate the demise of a famous Cuban singer's sister who's in town as part of a U.S. tour. Meanwhile, Hodges begins to get cold feet at the prospect of marrying his Italian bombshell girlfriend. (TV-14 L, V)