The Big Bang Theory Season 7 Episode 14: The Convention Conundrum
5 second plot: The guys are trying to get tickets for Comic-Con, but they seem to be out of luck. Until Sheldon meets Darth Vader. The girls are trying to act like grown ups, but that's not really working out.
5 second review: James Earl Jones and Carrie Fisher are acting a bit over the top, but everyone seems to be having a lot of fun.