Chester showed remarkable resolve to stun struggling Dartford with another incredible comeback that will mark them out as the Rocky Balboa of the Vanarama Conference.
Fresh from overturning a two goal deficit to salvage a point against Bristol Rovers on the weekend, the Blues went one better on Tuesday night.
Dartford seemed on course for a much-needed three points after Lee Noble and Elliot Bradbrook put them into a 2-0 lead but three goals in 10 minutes, two from Craig Mahon and one from Matty Hughes, flipped the contest around.
Rhys Oates added a fourth late on to kill off the hapless hosts and the Blues are closing in on a clutch of teams chasing play-off places.
Chester had made two changes from the 2-2 draw with Bristol Rovers, Michael Kay and Sean McConville replacing the injured Ben Heneghan and Josh O'Keefe.
Dartford welcomed back midfielder Peter Sweeney after he missed the 1-0 defeat at Lincoln City on Saturday.
On a drizzly night at Princes Park, the Blues made a bright start with captain Matty Brown heading an early chance wide but fell behind on 15 minutes when Ryan Hayes swung over a cross that Lee Noble fired past Jon Worsnop.
Hayes created another good opening soon after and Worsnop saved from both Elliot and Tom Bradbrook as the Darts got on top.
Chester got themselves back in the game and kept the ball well without ever threatening to open up the hosts, who made it to the the break with a 1-0 lead.
Dartford doubled that advantage 60 seconds after the restart when Noble sent over a cross and Elliot Bradbrook glanced a header past Worsnop, meaning the Blues would have to come from two down for the second game running.
Chester pulled a goal back on 50 minutes when Elliot Bradbrook gave up possession and Craig Mahon slotted home his fourth of the season.
Four minutes later and the little winger got his second, finishing off a John Rooney cross to leave the Darts wondering where that lead had disappeared too.
Things went from bad to worse for the hosts on the hour mark when Matty Hughes got clear and drilled a shot past Jason Brown to put the Blues ahead for the first time.
Chester almost got a fourth when Rhys Oates had a shot blocked but the Darts then had a decent chance themselves, Elliot Bradbrook shooting wide after Matty Brown took too long to clear.
Dartford were shell shocked and started to commit bodies forward with sub Danny Harris blasting over from close range but the Blues looked threatening on the break.
Oates exploited the space behind the Darts defence on 86 minutes when he ran onto a through ball from sub Craig Hobson and slotted home a fourth for Chester to complete a memorable fightback.
Dartford: Brown, Driver (Collier 59), Mitchel-King, McAuley, Bender, Sweeney, Hayes, Cornhill (Harris 71), E Bradbrook, Noble (Daley 81), T Bradbrook.
Subs: Ibrahim, Dembele.
Goals: Noble 15, E Bradbrook 46.
Chester FC: Worsnop, Kay, Brown, Charnock, G Roberts, James, Rooney, Mahon (Touray 88), McConville (Hobson 76), Hughes, Oates (Peers 90).
Subs: C Roberts, Harrison.
Goals: Mahon 50 and 54, Hughes 60, Oates 86.
Booked: Worsnop, Brown, James.
Referee: Mark Pottage (Dorset).