|Season 1, Episode 4|
|Air date||October 14, 2016|
|Written by||John Turman|
|Directed by||Joe Dante|
Mac and Jack partner with older versions of themselves, a Russian bomb programmer and his estranged handler, to shut down a Soviet-era warhead in Moscow. But when the antiquated computer needed to disable the warhead becomes inoperable, Mac must find a way to fix it with only duct tape and wire in time to prevent a new Cold War.
An agent of The Phoenix Foundation is killed after discovering an old Soviet bomb is being held by Vladimir Sevchenko, a Russian extremist who wants to restart The Cold War. Riley Davis discovers that the bomb uses its own unique operating system. While Thornton goes to find Sevchenko's whereabouts, the team searches for the programmer behind the bomb's code, a man named Alexander Orlov, and his handler who knew the passwords to disable it, Viktor Levkin. Orlov and Levkin share similar qualities to MacGyver and Jack Dalton, respectively. The group goes to Russia to collect an old computer needed to interface with the bomb, but Orlov is kidnapped by Sevchenko's men in the process. The group meets with Thornton to save Orlov, but the computer's keyboard is damaged and Levkin is mortally wounded. Mac improvises a keyboard replacement, the bomb is deactivated and Sevchenko is defeated. Orlov is thanked and returned to his retirement home, where he and Riley connect over The Price Is Right. Meanwhile, Thornton goes to tell the dead agent's family about her death and Mac and Jack discuss how Mac is secretly still searching for Nikki.
- Nikki Carpenter was mentioned, but does not appear.
MacGyver: The biggest problem with time is that you can never make more of it, which is fine when everything's going your way, but let's be honest, when does that ever happen?
Alexander: You are insane. I'd rather die than help you.
Sevchenko: I've always enjoyed a challenge, Doctor.