On the 7th of March, 2020 an Air Canada Embraer ERJ190 set flight to Denver from Toronto speeding down the Toronto Pearson International airport runway.

Just behind it, another Air Canada aircraft, this time a Boeing 777 heading to Halifax, was somehow also given takeoff clearance for the same runway.
The massive 777 was now on a collision course with the decelerating Embraer 190 and only seconds away from disaster.

This is the story of how two Air Canada planes and air traffic control ran it dangerously close.