Running Around (S05E03)

After a case languishes in the Jane Doe category for a year, a girl asks for the team's help finding her older sister, a teenage Amish girl who disappeared weeks after leaving home to go to Philadelphia and experience the outside world as part of Rumspringa, an Amish right of passage. Rush and the others reopen the year-old case, which reveals that the girl was murdered, and searches for the killer. (Warner Bros. UK)