again , if you 're just tuning in , channel 5 was first on the scene , bringing you news of a large explosion , a bomb of some type , that was set off downtown just moments ago ... '' while she spoke , chase watched in astonishment - then in mounting suspicion and abject dread - as a fleet of police cruisers and swat vans pursued a late-model red pickup truck from out of the city , toward an area of large , tree-filled estates and sprawling private properties .