I have unfinished business with Loki.
4 seconds sound clip from the The Avengers (2012) movie soundboard.
You can hear this line at 01:50:38 in the Blu-ray version of the movie.
Quote context
[...]
- Well, we got its attention. What the hell was step two?
- The power surrounding the Cube is impenetrable.
- Thor's right. We got to deal with these guys.
- I have unfinished business with Loki.
- Save it.
- Loki's going to keep this fight focused on us, and that's what we need.
- Without him, these things could run wild.
- We got Stark up top. He's going to need us to...
[...]