5 Moments From "Check" - NCIS S12 E11

The NCIS team must investigate a series of crime scenes that appear to be copy-cats of previous cases. Also, two of Gibbs' ex-wives, one of which the team has yet to meet, show up at a crime scene to discuss something important with him, on NCIS, Tuesday, Jan. 6 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Jeri Ryan (right) guest stars as Gibbs' second ex-wife. Also pictured: Melinda McGraw (left) Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved

The NCIS team must investigate a series of crime scenes that appear to be copy-cats of previous cases, on NCIS, Tuesday, Jan. 6 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Pictured left to right: Emily Wickersham and Michael Weatherly Photo: Greg Gayne/CBS ©2014 CBS Broadcasting Inc. All Rights Reserved

The NCIS team must investigate a series of crime scenes that appear to be copy-cats of previous cases. Also, two of Gibbs' ex-wives, one of which the team has yet to meet, show up at a crime scene to discuss something important with him, on NCIS, Tuesday, Jan. 6 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Jeri Ryan (center) guest stars as Gibbs' second ex-wife. Also pictured: Mark Harmon (right) and Andy Milder (left) Photo: Greg Gayne/CBS ©2014 CBS Broadcasting Inc. All Rights Reserved

The NCIS team must investigate a series of crime scenes that appear to be copy-cats of previous cases. Also, two of Gibbs' ex-wives, one of which the team has yet to meet, show up at a crime scene to discuss something important with him, on NCIS, Tuesday, Jan. 6 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Jeri Ryan (center) guest stars as Gibbs' second ex-wife. Also pictured: Mark Harmon (right) and Melinda McGraw (left) Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved

The NCIS team must investigate a series of crime scenes that appear to be copy-cats of previous cases, on NCIS, Tuesday, Jan. 6 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Pictured left to right: David McCallum, Emily Wickersham and Sean Murray Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved