KETT: Yeah, well, this Marine slipped and fell to his death. No sign of the camera. So we went over there and tried to reason with him. Peace out, man. His best friend, and his wife. ABBY: Well, I had to set up a clean room in the ballistics lab to work on the damaged videotape. He's served time. MOORE: (ON TAPE) What you just did was assault--
GIBBS: He was found yesterday lying at the bottom of a cliff. DUCKY: It's the urushiol oil in the plant. And with a little image enhancement...
TONY: Runion. We're going to have to find a new suspect. You're the fairest in the land, McGee. Play back.
Plan: A: Marine; Q: What was the profession of the man who fell off a cliff? A: his camera; Q: What records the Marine falling to his death? A: The prime suspects; Q: Who are the wife and best friend of the Marine? A: the camp; Q: Where was the Marine's wife and best friend staying when he fell to his death? A: Gibbs; Q: Who finds out that the Marine's wife and best friend had an affair? A: a dead man's back; Q: What was the affair between the wife and best friend behind? A: Abby; Q: Who reconstructs the damaged film footage on the camera? A: McGee's help; Q: Who helps Abby reconstruct the damaged film footage on the camera? A: a previously dismissed suspect; Q: Who did Abby discover was in the area at the time of the death? Summary: A Marine falls off a cliff, and his camera records him falling to his death. The prime suspects are his wife and his best friend with whom he was staying in the camp. Gibbs finds out they had an affair behind a dead man's back and he tries to persuade them to blame each other. In the meantime, Abby with McGee's help reconstructs the damaged film footage on the camera and reveals a previously dismissed suspect to have been in the vicinity at the time of the death.