Two scientists were racing

For the good of all mankind

Both of them side by side ( <--- Previously had 'the' instead of 'them')

So Determined

Locked in heated battle

For the cure that is their prize

But it's so dangerous

But they're determined

Theirs is to win

If it kills them

They're just humans

With wives and children

Upwards to the vanguard

Where the pressure is too high

Under the microscope

Hope against hope

Forging for the future

But to sarcrifice their lives

Both of them side by side

So determined

Theirs is to win

If it kills them

They're just humans

With wives and children

Theirs is to win

It will kill them

They're just humans