Magnum, P.I. - Season 3 Episode 7
Flashback

Thomas finds himself 45 years in the past, in a dream that seems so real that at first, he is certain that Higgins is pulling some sort of practical joke on him. Trapped in this 1936 Hawaii, he is working on a case for a ""dame in trouble"" - a young woman whos father, a union leader, has been accused of the murder of a construction magnate. Thomas encounters 1930s versions of Higgins, Rick, and T.C. as he tries to find the evidence needed to clear the girls father...