When a fire breaks out on a plane, an emergency situation can escalate to a deadly disaster in seconds. In Manchester, a holiday flight bursts into flames before leaving the runway. A joyous return home to Nigeria from Saudi Arabia turns tragic when smoke overtakes the aircraft. And small batteries in the cargo hold create a massive blaze aboard a UPS jet. Revisit the final moments of these tragic flights and see how the crashes led to major changes in the aviation industry to make flying safer.