We got two of them. They walked right into the trap.

2 seconds sound clip from Superman (1948) - Irresistible Force (Chapter 9).

You can hear this line at 00:02:43.606 in the Blu-ray version of the episode.

Quote context

[...]

- Learning that the Reducer Ray machine is to be taken to Metropolis, the Spider Lady plots to steal it. Clark Kent accompanies the truck, which is used as a decoy. But now the Spider Lady is informed that the machine is coming by train, and...

- There's the car, but what's goin' on?

- Looks like our men lost out too.

- Well, we can fix that.

(Police siren wail) Cops!

- We got two of them. They walked right into the trap.

- There was another guy with me here. That reporter, Clark Kent. He was knocked over that...

- What happened?

- Plenty! Superman was here.

- Say, you sure play things safe, don't you?

- Usually.

- I'd like to know just how you got that story about Superman stopping a train.

[...]