Torchwood, Series 3: Children of Earth

Ianto:
[holds up gun] If there's a virus, there must be an anti-virus. Release it now, or I'll blow a hole in that tank, and we'll all die together.

Jack:
[joins Ianto, holds up his gun at the tank] You've made your point now stop this and we can talk!

4-5-6:
You are dying. Even now.

[Jack and Ianto shoot at the tank, screaming noise is heard]

Jack:
What's that noise? What's it doing? [...] [to Ianto] We need to get you out of here. I can survive anything, but you can't!

Ianto:
It's too late. I've breathed the air.

Jack:
[horrified] There's gotta be something, there's gotta be an antidote!

4-5-6:
You said you would fight.

Jack:
[desperate] Then I take it back, alright?! I take it all back, but not him! [Ianto falls to the ground, and is caught by Jack] No! No, no, no, no, no. Ianto? No, no, no...