Nine Eleven

'He who controls the past, controls the future. He who controls the present, controls the past.' Orwell. 1984. On Nine-Eleven 9 A.D., three Roman legions are annihilated by an alliance of Germanic tribes; the Romans would never again attempt to expand east of the Rhine River. What if the Romans won?
On Nine-Eleven 1973, a military coup in Chile, engineered by the United States, topples the elected President and brings Pinochet to power. What if the coup fails?
On Nine-Eleven 1857, 120 emigrants are slaughtered by Mormons in the Mountain Meadows Massacre in Utah. What if it was worse than that?
One Nine-Eleven 1776, Benjamin Franklin and John Adams sit down with British Admiral Howe on Staten to discuss a possible peace settlement. What if they succeed?
On Nine-Eleven 2011, while the world is focused on the United States, the largest plane in the world is carrying the largest nuclear weapon ever made across Russia; but disappears. Who took it? Where is it?
And then there is the most mysterious mission of all, where a Time Patrol agent must go into the Patrol’s own recent history to insure it even exists.

The Time Patrol must send an agent back to each day, with just 24 hours for each to defeat the Shadow's plan to disrupt our time-line, creating a time tsunami and wiping our present out.