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.
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.
MacGyver uses a heater and tabasco 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.
Mac and the team must steal a priceless painting in order to draw out a black market art dealer; Bozer attends a spy training academy; Riley must deal with the return of her estranged father.
Mac, Dalton, and Cage pursue terrorists who have obtained a canister of deadly nerve gas; Bozer has been paired with Leanna for interrogation resistance training; Riley considers accepting her estranged father's invitation to dinner.
Mac helps a group of researchers trapped in the Arctic Ocean on a research vessel; Jack kidnaps Elwood, only to end up helping him deal with his past; Bozer and Leanna find themselves handcuffed together in a new test.
When Mac's nemesis rigs Mac's house with explosives and traps him and Jack inside, Mac uses a karaoke mic and an audio transformer to let the team know that the bomb is a distraction for a bigger one.
While participating in a challenge for government operatives to create robotic combat machines, Mac must help his biggest competitor when her vehicle is hacked and headed for the Pentagon.
The team heads to New Orleans to track down a con artist posing as the wife of one of Jack's old CIA aliases; enemies of his alias resurface looking for revenge.
They have 48 hours to make Omar reveal his war criminal dad's location. They attend, as 2 couples, a party at a chateau, where Omar has his honeymoon. Meanwhile, the others are busy breaking into their boss' safe.
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; Bozer struggles to keep a secret from Matty.
Mac and the team search for a former government tech who stole classified intel and cross paths with the Coltons, who are hunting the same man for different reasons.
Mac and Jack attempt to save the son of a billionaire after he is kidnapped by a former Navy SEAL who uses a weapon to cut power and communication lines to Shanghai skyscrapers.
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.
Riley and Mac are assigned to investigate a mysterious object at Area 51; Riley discovers top secret information on Mac's father, but is unsure if she should give it to Mac.