[1][2] Gibbs and Fornell are approached by their mutual ex-wife, Diane, when her current husband Victor, a Homeland Security employee, disappears from a drive-through under suspicious circumstances.
Tony, Ziva, McGee, and Abby are all amused by Gibbs and Fornell's awkward behavior around Diane and attempt to find out more about their boss's marriage.
Investigating Victor, they find that he has $2 million hidden in banks in the Cayman Islands, and accessed a government database to copy a genetic blueprint for a deadly Ebola-variant virus.
Based on a conversation Victor overheard, the team is able to prevent the attack in the nick of time, on an assembly of high-ranking officers from all five branches of the armed forces, at a football game.
The mastermind is revealed to be Victor's boss, a Homeland Security agent who was hired by someone inside the military-industrial complex, hoping to prevent a planned reduction in the size of the U.S. military.
[6] Steve Marsi from TV Fanatic gave the episode 4.7 (out of 5) and stated that "It was excellent from beginning to end, but the most moving, unexpected and emotionally loaded scene in "Devil's Triangle" was its last.