Possible Clues:

• Pack of lifesavers?
• "Nurse Jackie" extras, briefly
• Hwy. accident respondents
• First-aid experts, briefly
• They can be lifesavers: Abbr
• Legal runners of red lights, briefly
• 911 V.I.P.'s
• Important people on the scene, for short
• First responders, briefly
• They may save your life