Viewers went back in time on NCIS Season 12 Episode 3, as we finally delved into the history of everyone's favorite bow-tie wearing medical examiner, Ducky.

Next Tuesday, meanwhile, the team will be assigned to a joint terrorism task force by the Secretary of the Navy.

This extreme action will be the result of a research scientist being murdered and the prime suspect being wanted by the Russians! Yup, it looks like we may see a return of our season premiere nemesis.

Look for Gibbs and DiNozzo to run interference with task force leader Leia Pendergast and get an idea of what's to come on NCIS Season 14 Episode 4 via this CBS teaser:

Speaking of delving into history, here's a look back at the NCIS cast before they sky-rocketed to stardom on TV's highest-rated series: