Riley becomes jealous when Missy starts flirting with Lucas, so she enlists Maya and Farkle's help to figure out how to flirt.
The CSI's must delve into the high-pressure world of an elite prep schools when a student is murdered while studying for the SAT'S. Meanwhile, Lindsay returns home to Montana to visit her father and deal with some issues from her past. James Read guest stars. (TV-14 L, V)
