Your cause can be served, Serena. Next time they'll listen.

3 seconds sound clip from The Master (1984) - Hostages (S1E4) sitcom.

You can hear this line at 00:36:12.350 in the Blu-ray version of the TV Series.

Quote context

[...]

- The helicopters are standing at the foot of the mountain waiting to go.

- Now, we haven't got any time unless you intend to stand and fight.

- That's something else he gave up a long time ago.

- I know when to fight!

- My back's against the wall. We can be out of here in under an hour. Get everything ready.

- And what about the hostages?

- They'll execute them just before we leave.

- Your cause can be served, Serena. Next time they'll listen.

- Next time.

- Where are the hostages? Where?

- Over there, across the tower.

- You've all been betrayed. Your government cares nothing for your lives. They're the ones executing you.

- And our poor little rich girl is the first to die.

[...]