These two flights, soon hijacked by terrorists speaking a foreign language, turn south towards New York and initiate the most significant attack on American soil since Pearl Harbor.

Swooping down from the north, American Airlines Flight 11 strikes the northern World Trade Center tower at 8:46 a.m. Observers on the ground, questioning what just happened, look up in disbelief.

News channels immediately commence broadcasting live coverage of the event, many speculating it was an accident. Such theories evaporate as United Airlines Flight 175 smashes into the southern tower at 9:03 a.m. on live TV.