After Delta Flight 4819’s cabin rolled upside down and came to rest in a terrifying crash landing at Toronto Pearson International Airport, a flight attendant stood on what had been the ceiling – one leg propped on an upturned baggage compartment – and addressed passengers who’d unbuckled themselves from inverted seats.

Through videos, audio and more than a dozen interviews, the Star reconstructs a minute-by-minute account of Monday’s crash — and how close this city came to disaster.