Matty gets the promotion, Jack'd hoped for. After catching a war criminal in Kazakhstan, Mac and Jack's chopper's shot down. Can they catch the war criminal again and get away?
The Matty/Jack past comes up repeatedly. Mac and Jack try to catch a fugitive, when they're repeatedly outsmarted by a bounty hunter family. Can Davis and Bozer do better?
On a surveillance mission in Amsterdam, their target, a Dutch MP, gets a ticking bomb from terrorists. Mac takes it away. They end as terrorist suspects hunted by the police.
Mac and the team travel to Hawaii to help out when an earthquake strikes and partner with Chin Ho and Kono to rescue a group of government scientists trapped in a building about to collapse.
Mac and Jack help Mac's close friend from M.I.T. after she fakes her own death to prevent someone from killing her in order to suppress her scientific research.
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.