|Season 1, Episode 11|
|Air date||December 16, 2016|
|Written by|| Lindsay Allen |
|Directed by||Stephen Herek|
MacGyver and Jack search for Riley, using a microwave and a power strip, after she mysteriously disappears and hacks into the NSA, possibly unleashing World War III. Also, Bozer goes on his first official mission, and Jack opens up about his history with Riley’s mother, Diane.
Christmas is in danger when the NSA is hacked and Riley is the main suspect. After finding out that she did to save her kidnapped mother Diane Davis, she confesses to stealing a cyber weapon, able to remotely control vehicles. Riley, MacGyver and Jack head to Shanghai before the weapon can be used and result in World War III. It is later revealed why Riley was sent to prison, as well as the reason of her animosity toward Jack.
Jack Dalton: Come on, man, she's smart, but she ain't Nosferatu.
MacGyver: The German vampire?
Jack Dalton: No, the guy who predicts stuff.
MacGyver: I think you mean Nostradamus.
Jack Dalton: Whatever. You know what I'm talking about.