Adelaide led for three quarters of the game but Collingwood found something in the final quarter to secure a win in their final game of the season with 8.5 (53) - 4.8 (32). 

The Lions started the last round in fifth position but after the Lions pulled off a win against GWS Giants and the Bulldogs won against Melbourne Demons, they sat in second place.

The Lions were relying on Collingwood to beat and draw with the Crows. 

Collingwood only won two games all season and hadn't beaten Adelaide before, so to some it seemed impossible.

Adelaide are the reigning Premiership winners and had everything to play for to defend their title but it wasn't meant to be. 

Brisbane will go into the grand final looking to redeem themselves from 2017 were they went through the season undefeated but they fell at the final hurdle to the Crows.

The grand final will take place Saturday March 24 at Ikon Park from 1:05pm AEDT.