One and Six in “Unfinished Business”

[Speaking through Rex] Six.

One?

You left this place, quit life as a mercenary and so rarely returned to visit.

I did what I felt was right, I never meant to dishonor.

So rarely, that I never had time to tell you how proud you've made me.

[Takes off his glasses for the first time in the series] We're going to help you. We're going to take you home.

But Six, I am home. [Rex falls unconscious while One's body starts changing. Eventually his body dissolves and fertilizes the entire island to its former splendor]

He's still One. He's just one with everything.