“Elementary” (10 p.m., CBS): Holmes and Watson try to work a stateside investigation

“Elementary” (10 p.m., CBS): Holmes and Watson try to work a stateside investigation from London when someone close to them is gravely wounded by an unknown perpetrator in the United States. However, Holmes’ stateside legal trouble – the result of a confession to a murder he didn’t commit – threatens to derail their efforts.

TV listings, B5