Olivia and Walter in “Unfinished Business”

Olivia

Walter? Have you made any headway?

Walter

I can't lose him again.

Olivia

Walter, I know you're worried, we all are, but we can get Peter back. We just need you to find a way to disable Tyler.

Walter

Peter always helps me. I don't know what to do. How do I do this without Peter? He always helps me.

Olivia

He helps me, too, but you can do this.