Once and Again - Season 2 Episode 14 The Other End of the Telescope

Tensions between Benny (a busboy) and Giancarlo (the chef) at Jake's restaurant boil over. Jake separates the two and tells Benny to go home. He returns with a gun to confront Giancarlo. But he isn't there and can't be reached, so Benny holds everybody hostage. Over the course of the night, Tiffany hands Jake some surprising news, Grace and Spencer (who's there for his grandma's 75th birthday) become closer, and Lily realizes her feelings for Rick and accepts his proposal. At the restaurant, at the end of the night, Benny lets everyone go... and then puts the gun to his head...