In the series' pilot episode, Las Vegas private eye Dan Tanna (Robert Urich) is hired by a couple from the Midwest to locate their runaway daughter, who has turned to prostitution to make ends meet. When the girl winds up murdered, Tanna must follow clues into her seedy underworld. Meanwhile, at the Desert Inn, resort owner "Slick" Roth (Tony Curtis) hopes Tanna can nail a cunning trickster who has been making a killing at the casino's slot machines. (thetvdb.com)