Spoiler Alert: The military naively thinks it's over after 3 quiet hours with a body count over 22,000 worldwide. Imogen continuous her perilous journey, slowly, and warns them Daniel's calculations were off too in mass, Kassandra broke and the largest part is left. The new debris shower even hits the HQ, all satellite communications go down. The only hope is observing from a space mission, by Morse over ground aerials. The US arsenal being nearly exhausted, the Chinese join, the Russians must be tricked. Vindictive Calvin Stark escapes and gets hold of Jenny, so Jack pursues them all his murderous way to Taft. There his dad the sheriff must control panic after the nuclear power station is hit, and help them face Calvin. Michael gets in even more danger because of ma's foolish instructions, dad and a fireman heroically come to the rescue.