MacGyver
Young Angus Mac MacGyver works for a clandestine organization within the U S government, relying on his unconventional problem solving skills to save lives
MacGyver: Lost Treasure of Atlantis (1994)
MacGyver and his former college professor are first hunting some artifacts attributed to Zenon, an ancient scientist from Atlantis, and later the lost city of Atlantis itself
Link (1986)
When a female zoology student is invited to a remote seaside mansion to assist a primatology professor with his experiments involving chimpanzees, dangerous events start to occur, all involving the intelligent 45 year old chimp, Link
Age of Treason (1993)
Marcus Didius Falco must solve a murder set in Ancient Rome