Using only an armrest, a curtain rod, and a toothpick, MacGyver must fix a sabotaged train in order to protect a whistleblower who has proof that her boss is selling weapons to U.S. enemies.

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.

While tracking down the dangerous fugitive Aaron Deckard, Mac and Jack face the notorious Colton family of bounty hunters who already kidnapped their mark. Also, Bozer and Riley try to hack into Jack’s CIA file to find out about his history with Matty.

Using a necklace and a microwave transmitter, Mac and the team attempt to locate Riley after her first solo mission with a group of dangerous hackers goes off the rails

Mac and the team follow a group of Indonesian mercenaries who are transporting a lethal amount of stolen nerve gas in the hopes of tracking them to their dangerous leader. Also, Jack confronts Elwood about Riley, and Bozer is pushed to his limit in spy school.

Mac, Jack and Riley set out to find a mobster-turned-informant after he’s kidnapped and taken to Chernobyl by an international crime boss who’s worried he will deliver incriminating information to the CIA. Also, Bozer struggles to keep a secret from Matty.

MacGyver, Riley, Bozer and Leanna go undercover on a college campus to smoke out a deep-cover operative who is recruiting students to carry out deadly attacks around the world. Also, Jack joins bounty hunter Billy Colton in the hunt for a bail jumper but is concerned when he finds out Billy offered Riley a job.

MacGyver and team are asked to solve a locked-door mystery when a man working inside a remote, ultra-secure international seed vault disappears.

Matty’s ex-husband, Ethan, asks her for help when a criminal organization, S-Company, kidnaps his wife and daughter, forcing Matty to decide if she’s willing to commit treason in order to help him save his family. Also, Riley joins Billy Colton and Mama Colton on a mission to Paris and makes a heartbreaking discovery.