: This season marked the first use of the "foof"—the signature three-second black-and-white preview shown at the start of each act. Top-Rated Episodes Significance "Call of Silence"
: The episode "SWAK" features a high-stakes biological attack where Tony DiNozzo is infected with the plague, forcing the team into a desperate race for a cure. NCIS - Season 2
Revisit some of the season's most intense investigations and fan-favorite reactions: : This season marked the first use of
is widely regarded by fans and critics as a "high-water mark" for the series, serving as the benchmark for the storytelling formula that sustained the franchise for decades. Airing from September 2004 to May 2005, this season transitioned the show from its JAG spin-off roots into a standalone powerhouse, seeing a significant viewership jump to an average of 13.57 million viewers . Key Cast Transitions Airing from September 2004 to May 2005, this
The season's most-watched episode, drawing 15.65 million viewers.