After a female passenger aboard the flight saw George Avila unconscious, she screamed, bringing flight attendants Sue and Dan over to see what happened. Sue told Dan to notify the pilot, Stan Cotter, that Avila, the Air Marshal, was knocked out and a passenger was missing. (Jack Bauer had knocked out Avila to find an audio recording that was hidden on board, but did not know which person aboard the plane had it.) When a male passenger insisted on knowing what was going in, she sternly told the man to sit back down to maintain control. Sue was present when Jack forced Air Marshal Avila into the cargo hold, and then locked him in as ordered.
Sue maintained order with Dan on the plane while Jack searched for the recording which implicated PresidentCharles Logan in the Sentox nerve gas conspiracy. The evidence Jack sought was later determined to be not among the passengers, but with the co-pilot, Scott Evans. The plane later made a dangerous but successful emergency landing on a Los Angeles highway.