It from season 1 episode 5 "Redwood". Nicole is giving Jane a hug at the end of the episode. Two girls, Nicole & Kara, are returning from a party & 1 girl's body is found under the car while the other girl is missing. She turns up later with memory loss & the local police suspect her of the deed except for Jane. Jane helps her to regain her memory & finds the real culprit.
