The LAPD interrupts the team’s Christmas celebration to arrest Mac for terrorism when they find a body in a building destroyed by a bomb Mac built.

When Mac and Jack are trapped inside Mac's house, which his nemesis, The Ghost, has rigged with explosives, Mac uses a karaoke mic and an audio transformer to let the team know that this bomb is a distraction for a bigger one. Also, through flashbacks, Mac and Jack's contentious first meeting unfolds.

Using cuff links and wire, MacGyver and the team go undercover in a high stakes casino to steal diamonds from a vault before a terrorist group gets there first and trades the jewels for a weapon of mass destruction.

The team is pulled away from their Halloween plans when they head into the dreaded Bermuda Triangle to retrieve the Vice President’s son after his plane goes down with a mysterious prisoner on board.

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.

When 32 college students are stranded on a research ship in the Arctic Ocean with no heat and erupting fires, Mac develops an emotional connection to the group leader, via video chat, as he relays how to stay alive as they await a rescue ship. Also, Jack kidnaps Elwood to find out what scam he’s up to next, and Bozer’s feelings toward Leanna grow stronger.

While MacGyver is in Puerto Rico helping his friend rebuild his hurricane-damaged home, he is taken hostage in the bank his friend manages when robbers attempt to steal $2 million.

Mac and Riley are attacked by a group of masked men after the government calls them in to examine a mysterious object that crash-landed in the Nevada desert. Also, Riley uncovers new information about Mac’s father but questions whether to deliver it to him after he says he needs to move on.

An international crime boss offers Matty a deal she can’t refuse – he’ll surrender himself into her custody if he’s allowed to return to the United States to watch his daughter walk down the aisle. MacGyver and team crash the wedding to ensure the crime lord doesn’t run, only to discover they’re not the only ones lying in wait at the event.

Using a cryptic postcard as their only clue, Mac and the team must solve a fallen friend’s final case and bring him justice.

Using a cassette player and a plastic bucket, Mac and the team attempt to extinguish a massive oil wellhead fire in a Nigerian village, set by a rebel group, which is trying to topple its government by destroying their most valuable resource.

MacGyver uses a heater and hot sauce to help a key presidential candidate in Ecuador receive a heart transplant he desperately needs after a rebel group tries to sabotage delivery of the organ.

After one of Murdoc's go-to assassins agrees to hand over Murdoc to MacGyver in exchange for $10 million, the team finds itself protecting Murdoc from his former mentor, Nicholas Helman, who wants him dead. Also, Jack realizes he may still have feelings for Riley's mother, Diane.

MacGyver gets a shocking surprise when he tries to tell Matty that he’s quitting the Phoenix Foundation.

When MacGyver takes Riley and Bozer into the wilderness for a weekend of survival training, things take a turn when they run into a violent group of criminals who are searching the rugged backcountry for a lost crate of money. Also, Jack and Matty go on a road trip to place Matty’s ex-husband and his family in witness protection.

When Nicholas Helman resurfaces to carry out a killing spree, the Phoenix is forced to get help from the one person who knows him best… his protégé, Murdoc.

MacGyver faces off with a cunning new adversary whose carefully crafted plans put Mac at the epicenter of an impossible choice: save the life of a friend, or save the lives of hundreds of innocents. Also, Mac receives new information that will drive a wedge between him and his father.

After Oversight is almost killed in a bombing, he recruits Mac to help him find the suspected bomber, Mason. However, when Mason reveals he didn’t plant the bomb, the three team up to track down Codex, the shadow organization that set them up. Also, Mac meets his aunt Gwendolyn.

Mac's meeting with Desi's parents goes sideways when her brother finds himself in trouble and desperately needs their help. Also, Russ and Matty must ask an old nemesis for assistance when their new recruitment candidate is kidnapped.

While on a mission to hunt down a Codex lead, Mac and the team discover Murdoc hacked their comms and has recorded them for months. Now, Mac and the team must stop Murdoc, who is working with Andrews, as they plot to kill thousands and reveal each Phoenix member’s most-guarded secrets.

Murdoc abducts MacGyver’s girlfriend, Nasha, to force Mac to help him rescue his son, Cassian, from a kidnapper. Also, a dangerous individual from Murdoc’s personal life shows up, giving Mac a glimpse into the villain’s past.

MacGyver and the team set off on a dangerous capture operation after an Irish military intelligence officer approaches them claiming to know the whereabouts of “The Ghost,” a lethal bomb maker whom Mac has been hunting for years.

Mac and Jack hit the road for a weekend of relaxation in Las Vegas, but their mini-vacation is cut short when someone from their past abducts them and locks them in a concrete room. Also, Matty tasks Riley, Bozer and Leanna with stealing a diamond encoded with terrorist intel from a princess in Milan.

The Phoenix teams up with a woman who’s a soccer mom by day but a master thief by night to catch one of her contacts, an underworld criminal, who has hired her to steal a dirty bomb.

A double date descends into chaos when Mac and Desi witness a murder in the back of the restaurant, and as they work to find the killer, Riley tries to keep the secret about her and her friends’ “day jobs” from her new boyfriend, Aubrey.