|Season 1, Episode 7|
|Air date||November 4, 2016|
|Written by||Sean Hennen|
|Directed by||Omar Madha|
Mac goes undercover at a prison as part of a plan to break out a leading drug cartel boss and convince him to take Mac to his secret headquarters... if Mac can survive long enough.
When Nikki sends an assassin to take out Mac and the rest of the team, Bozer learns who MacGyver and the others really are. Mac must outlast the crafty killer in a game of cat and mouse in a junkyard to save the others. When the killer is apprehended, he identifies himself as Murdoc. Nikki meets Mac at a diner and warns him that more killers will come. She also tells him he'll soon need to use the Portugal key. Mac returns the favor by threatening to go after her family, demonstrating how Nikki's actions have permanently changed him.
- In prison, we call that a nark. Someone who's cooperated with five-O. Chisel
MacGyver: One other fun fact about hydrogen. It's lighter than air. That's what kept he Hindenberg up in the sky... until it didn't.
Jack: What is this guy, like, an Olympic sprinter or something?
MacGyver: Yeah, didn't you read his file, Jack? Special skills include stealing top-secret information with his phone and the 100-meter dash.
Jack: Yeah, I hear the sarcasm, I'm just too tired to appreciate.