Annihilation from Above

Mining asteroids with robots is common and sometimes the orbit of the rock is changed to facilitate extracting the valuable metals.
One Monday morning, a car bomb detonates in Manhattan. As law enforcement officials scramble to find who's responsible, it becomes clear that it was a distraction. Terrorists have hijacked an asteroid and put in an orbit to hit the Earth. Suddenly the race is on to stop it.
While FBI agent Juanita Flores pursues the bombers, astronauts Howard Drayden and Johnny Park put their lives on the line to save millions. Can Flores find who is responsible while Drayden and Park endeavor to avert the disaster in time?