Back everyone. Back! Take cover! It could be explosive.
8 seconds sound clip from the Batman (1966) TV series - Fine Feathered Finks (S1E3).
You can hear this line at 00:18:00 in the Blu-ray version of the movie.
Quote context
[...]
- Darn it! Not a thing to hold him on.
- Yet.
- Beg pardon? Were you saying something?
- You've outsmarted us this time, Penguin. But don't get too confident.
- We know you're up to some super-crime. And we're going to watch you.
- Right.
- Back everyone. Back! Take cover! It could be explosive.
- Wow!
- Curious. It looks like an ordinary umbrella except, for it's unusual size.
- Look up there, Batman! Hanging from the handle.
- I bet my life on it, Robin. This could be a clue to the Penguin's game.
- Easy. I'll use the bat-rope.
[...]