Joan and Arthur unveil a traitor in their midst. Annie, Auggie and Calder head off on an unsanctioned mission to Hong Kong in pursuit of Henry's courier. Yoo hoo Yoo hoo Yoo hoo There goes my gun / Yoo-hoo! Directed by Stephen Kay. Lyrics to 'There Goes My Gun' by Pixies. With Piper Perabo, Christopher Gorham, Kari Matchett, Hill Harper. There Goes My Gun (Peel Session) Lyrics: Yoo-hoo! / Yoo-hoo!