Coached by Wayne Bennett and captained by Allan Langer, they participated in the newly formed National Rugby League's 1998 premiership and posted their three biggest ever wins in rounds 5, 7 and 15 before finishing the regular season as minor premiers.
The Broncos then won the 1998 NRL Grand Final, capturing their fourth premiership in seven seasons.
After a week off granted by winning the minor premiership, the Broncos were smothered out of the game by Parramatta 15–10 in their opening finals match.
But they lifted and provided some miracle spark against the Melbourne Storm 30-6 a week later, resurrecting their premiership hopes.
[7][8] The Broncos' 1998 premiership win came in a year in which their Australian Football League neighbours, the Brisbane Lions, won the wooden spoon.