Chesterfield one game away from EFL return
Paul Cook's side gained a 3-2 win over Bromley.
Chesterfield will face Notts County in the National League promotion final on Saturday.
A dramatic afternoon saw extra-time, a red card and a drone incident stop play.
The visitors had taken the lead just before the break through Adam Marriott, an own goal leveled the scores, with Deji Elerewe being sent off as well soon after.
Darren Oldaker had given the hosts the lead before Michael Cheek's 99th-minute equaliser forced extra time.
Liam Mandeville won the game for Chesterfield and sent their fans wild.