Gibbs teams up with FBI Agent Fornell on a joint NCIS/FBI investigation after Fornell becomes the target of a shooting, but they face an unexpected twist in the case when their mutual ex-wife, Diane Sterling, gets involved. Meanwhile, rumors run wild... (more) among the group after Diane stays overnight at McGee’s.

Colby French, Danny Nucci, J. Downing, Joe Spano, Melinda McGraw, Trevor Torseth, Will Beinbrink