SPOILER ALERT
August 6th, 2010
A plane departs from Los Angeles airport bound for Phoenix. The passengers prepare for takeoff, among them Alex and Jake. Jake is on the phone with his mother, who wasn’t able to board the flight and is instead renting a car. Suddenly, he hears screams through the phone, and notices that various parts of the city are experiencing blackouts. During the flight, Alex becomes suspicious of a passenger near her who doesn’t seem well.
The man gets up and goes to the restroom, where he stays for a long time. Alex alerts the flight attendant, who, with the help of a police officer on board, manages to open the lavatory door.
The man inside collapses lifeless to the floor. While attempting to resuscitate him, everyone notices a bleeding wound on his side. The man suddenly reanimates and attacks his wife, biting her neck. The police officer shoots him, but in vain. In the end, it is Alex who finally puts him down with a shot to the head, and does the same to his fatally wounded wife. Meanwhile, the flight attendant realizes she has been scratched by the infected man, and the passengers soon discover that one of the officer’s bullets has pierced a window.
The window gives way, causing decompression and sending the plane into a steep descent. Panic erupts among the passengers. As the plane plummets, Alex confesses to Jake that she took his mother’s place on the flight.
From the ground, Nick (FTWD Season 1) sees the plane losing altitude and crashing from the sky.
P.S.: The dates in the timeline are approximate, but everything happened more or less around those days.