He played for the Sydney Roosters, Canberra Raiders and Penrith Panthers in the National Rugby League.
Plum was granted a release from his contract with the Sydney Roosters in 2007 and immediately signed with the Canberra Raiders.
In the 2008 NRL season, Plum played in Canberra's elimination final loss to Cronulla-Sutherland.
[3] Plum returned to first grade in 2011 and was voted Big League Magazine's Hardest Hitter.
[4] On 15 August 2015, Plum announced his retirement from the NRL effective immediately after the Panthers' round 23 win over the New Zealand Warriors.