CBS | 10:00 pm
Someone has left and someone arrives in "Aftershocks," in which Vanessa Ferlito ("CSI: NY") succeeded Zoe McLellan as a regular cast member. The newer character is FBI agent Tammy Gregorio, who probes Pride (Scott Bakula) and his team while they probe the case of a sniper who strikes at well-attended events in the Big Easy. Steven Weber reprises his recurring role as the city’s mayor. Lucas Black and CCH Pounder co-star.