Last night's episode featured a murder and bank robbery cleverly intertwined while picking up the season premiere's story of Special Agent Lee's (Liza Lapira) secret betrayal. As the team investigates the robbery, Director Vance wants Gibbs's gut feeling about borderline probie Dwayne Wilson (Rey Valentin). Problem: Gibbs is uncharacteristically doubting himself given his recommendation of Agent Langer (Jonathan LaPaglia), whom Lee framed and killed as the traitor.
Wilson has average test scores, no second language, and minimal computer skills, but his quick thinking and action under fire impress Gibbs. In the final scene, Gibbs posts Langer's ID on a wall of fallen LEOs including Special Agent Paula Cassidy (Jessica Steen). This suggests that Gibbs knows Lee was the traitor. We'll apparently find out next week.
Kudos to writer Alfonso H. Moreno.