Why don't you just go back and save your own people?

We have been given the chance to save our people.

Save my people and give them a new chance at life.

You can only save people from themselves for a little while.

To save your people, even if you kill them in return.

Would it be able to even go further and save other people?

"We want someone who will come to save the people."

What's the death of a human, if it might save my people?

"It will tell us if we have a chance to save our people."

"But are you the one who will save my people?"