The plot: Sherlock pursues Martin Ennis (Terry Kinney), an unpredictable criminal, before he strikes again. During the investigation, Sherlock is forced to work alongside Kathryn Drummond (Kari Matchett), the FBI profiler who literally wrote the book on Ennis. / How many watched: 20.8 million. / Touchdown or fumble: A bit of a fumble for CBS. This was the lowest rated post-Super Bowl show since 2003. And the last time CBS had the Super Bowl, its post-game offering of "Undercover Boss" earned nearly double the viewers of 2013's "Elementary"
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