Arrow, Season 1

Oliver:
Malcolm Merlyn... You have failed this city.

Malcolm:
And how have I done that?

Oliver:
The Undertaking. It ends now.

Diggle:
[on earpiece] Oliver, the device... It's gone.

Oliver:
Where's the device?

Malcolm:
Safe. I don't know how you got that trojan onto my system, but it prompted me to take precautions. There is noting you can do to stop what is about to happen. And you shouldn't. This city needs what is about to happen in order to survive. The people who are destroying it from the inside need to be erased from the map.

Oliver:
Fine. Let's start with you.

Malcolm:
Ironic, isn't it? Last Christmas, I almost killed you. A few months ago, you saved my life. And now you're here to trying to kill me. You should makeup your mind.

Oliver:
Done.