Annihilation No. 3

Third time round, the big one
And no-one will survive
Just count the days, we're in a maze
And no-one gets out alive
Annihilation number three (x4)
So don't plan any future
'Cos you haven't got the time
Just do the very best you can
'Cos your life is on the line
ONE … What's the use?
TWO … What's to gain?
THREE … No-one wins