5 Moments from "We Build, We Fight" - NCIS S12 E13

Gibbs (Mark Harmon, right) and the team investigate when a Navy lieutenant who is set to be the first openly gay service member to receive the Medal of Honor is murdered.

"We Build, We Fight" - NCIS S12 E13

Gibbs and the team investigate when a Navy lieutenant who is set to be the first openly gay servicemember to receive the Medal of Honor is murdered. Also, as his wife's due date approaches, Palmer prepares for fatherhood with a NCIS baby shower, on NCIS, Tuesday, Feb. 3 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Pictured left to right: Brian Dietzen, Pauley Perrette and Sean Murray Photo: Cliff Lipson/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved

"We Build, We Fight" - NCIS S12 E13

As his wife's due date approaches, Palmer (Brian Dietzen, right) prepares for fatherhood with a NCIS baby shower, on NCIS, Tuesday, Feb. 3 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Also pictured: Michelle Pierce (left) Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved

"We Build, We Fight" - NCIS S12 E13

Gibbs (Mark Harmon, right) and the team investigate when a Navy lieutenant who is set to be the first openly gay servicemember to receive the Medal of Honor is murdered, on NCIS, Tuesday, Feb. 3 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Also pictured: Susanna Thompson (left) Photo: Sonja Flemming/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved

"We Build, We Fight" - NCIS S12 E13

Gibbs (Mark Harmon, right) and the team investigate when a Navy lieutenant who is set to be the first openly gay servicemember to receive the Medal of Honor is murdered, on NCIS, Tuesday, Feb. 3 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Also pictured left to right: Sean Murray and Pauley Perrette Photo: Cliff Lipson/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved

"We Build, We Fight" - NCIS S12 E13

Gibbs and the team investigate when a Navy lieutenant who is set to be the first openly gay servicemember to receive the Medal of Honor is murdered. Also, as his wife's due date approaches, Palmer prepares for fatherhood with a NCIS baby shower, on NCIS, Tuesday, Feb. 3 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Rocky Carroll (pictured right) Makes His Directorial Debut Photo: Cliff Lipson/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved