Our job is to get Alfred there before our cunning adversary does and use the 12th hat to trap him once and for all.

9 seconds sound clip from Batman (1966) - Batman Stands Pat (S1E14) TV Series.

You can hear this line at 00:09:18 in the Blu-ray version of the movie.

Quote context

[...]

- Alfred, tell Mrs. Cooper that we called from Slater Sleuth, and that we sighted some night flying birds And tell her we'll be late for dinner.

- Very good, sir.

- On second thought, Alfred, tell her, you'll be late for dinner.

- Me, sir?

- The 12th juror is Bowinkle. Turkey Bowinkle. He owns a bowling alley.

- A bowler!

- Precisely.

- What more fitting head piece for the mad hatter to steal.

- Our job is to get Alfred there before our cunning adversary does and use the 12th hat to trap him once and for all.

- Me, sir?

- Our cunning antagonist knows we're after him. We must do nothing to excite attention.

- I want you take this, bat-homing transmitter.

- Pay a call on Turkey Bowinkle, at the Bowl-O-Drome.

[...]