In a quest to find his biological parents, Mel Coplin (Ben Stiller)-- joined by his wife (Patricia Arquette) and a sexy adoption counselor (TÚa Leoni)-- embarks on a cross-country search for his 'roots.' Yet as he careens from one outrageous situation to another, Mel finds himself tempted by the seductive counselor-- even as his wife starts a flirtation of her own! By the time they meet up with his free-spirited birth parents, the whole situation is spinning out of control.