While Magnum and Higgins are trapped in the elevator, Magnum accuses Higgins of being Robin Masters and the unseen writer is an actor which Magnum suggests is Orson Welles. An inside joke since (until his passing during season six, in October of 1985) Orson Welles provided the voice of Robin Masters.
Depending on interpretation this is either the third or fourth time Higgins' Kwai river bridge has been destroyed. During the story when it was destroyed a second time, Higgins rebuilt it and then it fell apart at the very end. This is, however, the first time it has been blown up.
Richard Narita's (Bill Nahli) first of appearance in the series.
James Shigeta's (Mr. Obotu) second appearance in the series. He is best known for playing Mr. Tagaki, the CEO of Nakatomi in "Die Hard" (1988).
The building demolition shown was actual footage of the implosion of the Kaiser Hospital in Waikiki in 1986.