On the eve of her final night at an urgent care center, an opiate-dependent nurse practitioner must overcome her addiction to fight off a gang of violent teen junkies, fiending for the stash of narcotics.

Thank you for all of your feedback! So, to answer some of your questions, the reason the gang targets her and that center is that two teen gang members were there earlier during her shift, making up some story about why they need pain meds. She devises a plan to give them some, but keep a few for herself. They realize what she did and threaten her but security kicks them out. They're angry and want the rest which is why they come back with their buddies.

Also, regarding the narcan, it only reverses the effects of the narcs temporarily.... basically to give EMS enough time to flush their system or get them to a hospital before it wears off. As a nurse, I've given it plenty of times to only see it wear off 45 mins later...... which actually may be a good ticking clock! Anyways, thank you guys!

Building on earlier comments how about:

When a gang of violent junkies overtake security at an Urgent Care center, an opiate-dependent nurse injects herself with NarCan (?) to sober up and start fighting back.

Why her? (Just curious)

I'm just wondering why she doesn't do like a bank teller who is being robbed and just tell them, take what you want. After all the drugs can be replaced but human lives can't.

I think you need the gang to take someone she cares about, hostage. That way she can't just walk away but must do something.

Also, you need to get rid of her phone. At the beginning of the story, you should show her phone battery on empty and she forgot her phone charger. Just make it a quick ten-second scene where she realizes she forgot her charger but she is late so she can't go back home to get it. Otherwise, people will wonder why she just doesn't call the cops.

Anyway, good luck with this, it sounds interesting.