The dark arrow

A terrorist is on the lose in New York. Murders and bombs were starting every were. After failing to catch the culprit and the city deemed to unsafe.( explosives and traps are every were )
The government is evacuating the civilians of New York to more suburban and safer areas. But what they don't know is that they left a small group of teenagers behind.

This is a original ( as far as I know ) story that I have created.
( Btw this is my first story and I'm bad at descriptions and I'm bad at spelling please tell me if I have made a mistake thank you )