"None the Nurse" is an orchestral piece from the Season 6 soundtrack.
Desmond runs into Jack and asks his help to find Charlie. Charlie himself soon runs by, wearing only a dressing gown and with several doctors in pursuit. Desmond chases down a stairwell and finally corners him. Charlie claims he was trying to wake Desmond, not kill him, and encourages him to find the person he saw in his flashes.
The second movement returns to his flash sideways theme before shifting to new action material. It ends on the flash sideways theme.
The title plays on the phrase "none the worse".