NCIS Season 12 Episode 1 Photos Twenty Klicks : “Twenty Klicks” – Gibbs and McGee travel to Russia to safely escort home an NCIS computer engineer connected to classified intel, but their mission is compromised and they are forced to go off the grid while hunted by a Russian mercenary group. Meanwhile, the team in D.C. frantically uses every asset and inter-agency contact they have in an attempt to locate their missing team members, on the 12th season premiere of NCIS, Tuesday, Sept. 23 (8:00-9:00, ET/PT), on the CBS Television Network.