Mack and Tom try to track down a former Oakman employee, but Tom has another mission to accomplish; Olivia buys some stock on a tip, while Harold also searches for a way to make a fast buck; Val plans her wedding, despite friends' doubts.

Sumner's embittered daughter Mary Frances pays a surprise visit; Mack learns who controls the Oakman Industries' pension fund; and Harold gets in over his head in the world of high finance, while Olivia's business acumen pays off.

Tom is summoned to Sumner Group headquarters to investigate a tragedy; Jane Sumner is summoned again to Knots Landing; Mack considers giving up the Oakman investigation.

Sumner is left more than baffled by findings that may be connected to his daughter's homicide; Harold leans on Tom for a loan; Karen picks up bad vibes from Danny at a dinner party for Val; Gary finds himself alone - again.

Someone is waging war on the Sumner Group, but Mack's chief concern is Paige's safety; Danny means to end Gary's interference; Eric returns to make amends.