Angel: Season 4, Episode 3
The House Always Wins
Angel, Fred and Gunn take a road trip to Las Vegas to enlist Lorne's help in finding Cordelia, but when the get there Lorne doesn't even acknowledge their presence. It soon becomes clear that Lorne is being held against his will, and that his popular casino act is actually a way for his captor to read the futures of people in the crowd. Angel and the gang must find a way to help Lorne escape without sacrificing their own destinies in the process.