During his "decompression" time, Mike visits an old hangout---Sonny's Bar---and helps the new proprietress (Alona Tal) restore the joint to its original glory. But Mike must square off against a mysterious someone who wants the bar sold, and that person may resort to arson to fulfill that desire.
When a plane transporting a 10-year-old federal witness crashes, Mike determines that the accident was faked and that the boy was kidnapped. He clashes with the investigating DEA Agent (Maria Menounos), who promptly arrests him for interfering with the case. Meanwhile, Sarah fights for more authority over the SSC's future endeavors.
A downcast Sarah skips town in the wake of a tragic family event, and Mike's subsequent search for her yields intriguing answers about his nebulous past. Meanwhile, the NSA gets a green light to activate KITT's evil nemesis, KARR, prompting outrage in Mike and the gang.
Mike and KITT continue their high-octane mission to foil a terrorist and rescue an ambassador. But the quest turns even more perilous when a bomb is placed inside KITT---and it will explode if the car is driven below a certain speed. Meanwhile, Sarah receives shocking information about her father. Richard Roundtree guest stars.
The spread of a devastating computer virus jeopardizes the entire world. It could also mean the ultimate stall out for KITT, who becomes infected by the big bug. Elsewhere, Mike's jealousy grows when Sarah reconnects with her ex-beau (Jeffrey Pierce).
There's a big bad trick on Halloween when an intruder kills a tech inside Knight Industry headquarters. Meanwhile, a storm strands Mike and Sarah on a flight as they race against time to save KITT from self-destruction.
Mike poses as a marine to thwart a rogue military officer's explosive scheme to blow up a dam. Helping him in the mission: a beautiful undercover agent. Elsewhere, Billy is tutored in the fine art of combat.
A lethally poisoned Mike must fake the assassination of a tech bigwig in order to obtain the antidote. Meanwhile, hallucinations and the reemergence of an enigmatic woman (Paula Garcés) shine light on Mike's hazy past.
Mike and Zoe arrive in Mexico, masquerading as surfing honeymooners in an undercover mission to thwart a plot to smuggle terrorist weapons into the U.S. Sarah and Billy are also on the case---but surprising developments jeopardize the assignment.
A high-octane, tire-spinning drama about intrigue involving a tricked-out car and its driver. In the opener, Mike (Justin Bruening) and KITT gear up to deliver a package---but their parcel turns out to be a man with top-secret codes inscribed in his DNA. Mike's travels turn perilous upon the encroachment of enemies, including an enigmatic lady (Paula Garcés) who has detailed knowledge of a past Mike can't remember. Val Kilmer provides the voice of KITT.