Summary:

A bus accident leaves House with serious head trauma and partial amnesia. He comes to believe that a patient on the bus had a life-threatening disease and struggles to recall who it was, and what they had.

Writer:     Russel Friend, Garrett Lerner, Doris Egan, David Foster (II), Peter Blake (IV)
Director:     Greg Yaitanes

Star:     Robert Sean Leonard (Dr. James Wilson),  Hugh Laurie (Dr. Gregory House),  Jesse Spencer (Dr. Robert Chase),  Jennifer Morrison (Dr. Allison Cameron),  Lisa Edelstein (Dr. Lisa Cuddy),  Omar Epps (Dr. Eric Foreman)

Recurring Role:     Bobbin Bergstrom (Nurse),  Peter Jacobson (Dr. Chris Taub),  Kal Penn (Dr. Lawrence Kutner),  Anne Dudek (Amber),  Olivia Wilde (Thirteen)

Guest Star:     Fred Durst (Bartender),  Sharmila Devar (Nurse),  Jennifer Lee Wiggins (Stripper),  Issac Bright (Goth Kid),  Rebecca Rhae Larsen (Bohemian Girl),  Boogie (Dreadlocks),  Henry Hayashi (Kaneshiro/Bus Driver),  Julie Ariola (Nurse Dickerson),  Ivana Milicevic (Woman in Black)