Magnum, P.I. (1980): Season 3, Episode 23

3 - 23: Faith and Begorrah

Magnum needs some luck o' the Irish when he's hired to determine if a man's wife is cheating, and during the investigation meets Higgins's half-brother, Fr. Paddy McGuiness, a priest from Northern Ireland who believes that an English relic was stolen during a search for I.R.A. weapons.