The Northern Territory Supreme Court heard Michael Holden set 18 fires over 16 months between May 2018 and September 2019.
Michael Holden was a volunteer firefighter for five years with the Darwin River Volunteer Fire Brigade, he battled dozens of blazes to protect the community; however, the court heard some of the fires burned for several days.
Holden has pleaded guilty to setting these fires which threaten properties in the rural area burning the equivalent to 1700 soccer fields.