We are Darkwing's Ducks!
4 seconds sound clip from Darkwing Duck - Life, the Negaverse and Everything (S1E35).
You can hear this line at 00:18:01.714 in the DVD version of the TV Series.
Quote context
[...]
- Darkwing Duck has ruined my St. Canard, so I'll ruin his!
- I was getting sick of this place anyway.
- We are the terrors that flap in the night!
- We are the soap that's cleaning up this town!
- Friendly Four, Darkwing's Ducks, different name, same old losers. Herb, grill 'em!
- All right, team, let's prove we're not losers anymore!
[...]