Hunting artifacts attributed to Zenon (an ancient scientist from Atlantis), MacGyver and his old professor end up searching for the lost city.

A close friend of MacGyver is murdered. In searching for a reason for this assassination, MacGyver discovers a secret nuclear weapons plant right in the center of Britain.

The nephew of MacGyver leaves school and joins the Phoenix Foundation. As expected the younger MacGyver finds his talents closely match his uncle's.

Richard Dean Anderson reprises his role as a now-retired MacGyver running a home repairs business with his daughter, when a last-minute Saturday job to fix a corporate high-rise building's air conditioning turns into a mission to stop criminals selling top-secret military equipment.