Water & Power

S2 E12: Emerson gets a lead in his daughter Penny's whereabouts when he investigates the murder of millionaire Roland Stingwell (guest star Fred Williamson). The prime suspect is Penny's no-good mama, Lila Robinson (guest star Gina Torres - "Firefly," "Alias," "Standoff," "24," "Cleopatra 2525"), who ran off with the girl years ago. Meanwhile, an awkward Randy Mann (recurring guest star David Arquette) tries to romance Olive.