Magnum, P.I. (1980)

Higgins wants Magnum to find the ""Lost Art of the Ancients"", a priceless ancient scroll from a fallen civilization, that could spell disaster if it should ever fall into the wrong hands. But the search for the long-lost artefact is laced with abduction, danger and deceit, as an old flame of Magnum's, a foreign double agent, and a ruthless rival of Higgins' are all out to find the scroll as well, and the dangerous path to unearthing it could ultimately lead to death...