ItsChristmasandZipandZapareuptotheiroldtricks.ButthistimetheyvegonetoofarandtheirpunishmentwillbenoChristmasvacationandaseeminglyboringboattripwiththeirparentsinstead.Totheirsurprise,thedestinationisaspectacularremoteisland.Butaterrifyingstormrollsinandtheyreforcedtoseekshelteratamansionbelongingtotheeccentric...