Burnie full-forward Rohan Baldock missed a set shot on goal after the final siren which would have snatched victory for his side in yesterday's State League qualifying final against Launceston at Aurora Stadium.
Instead it was the Blues who held on for another thrilling one-point victory to set up a second semi-final clash against cross-town rival and premiership favourite South Launceston at Aurora next week.
Baldock marked deep in the grandstand pocket at the Southern end of the ground just before the siren blew with the Dockers trailing by two points.
His shot on goal looked good off the boot but just drifted wide of the near post to give Launceston the narrowest of wins - 13.16 (94) to 14.9 (93).
The Blues were the better side in the first half playing a good brand of running football with a dominant defence and a more productive forward line.
They kicked five goals to two in the first quarter to lead by 19 points with Sonny Whiting on fire booting three and captain-coach Brennan Savage, who declared himself fit and played, kicking two as a marking target in the goal square.
A four-goal-to-three second quarter gave them a 25-point advantage at half-time but the Dockers hit back in the premiership quarter outplaying Launceston and fighting back into the contest with four goals to one to cut the margin to just 10 points at the last change.
The Blues seemed to have done enough to hold on in the final quarter but Burnie banged on three quick late goals to leave the game on a knife's edge in the dying minutes - Baldock missing a last-gasp shot that would have snatched the win.
''We pretty much spent our tickets in the first half, battled manfully in the third and they kicked five goals in the last quarter,'' Savage said.
''We've had a lot of shots on goal again and haven't capitalised which is the tale of the past two or three weeks.
''They had a chance to win it but it didn't work out this time.
''We were lucky not to get run over but I'm happy with the way we played especially in the first half which was a terrific brand of footy and gives us a lot of confidence going into next week.''
Savage finished with five goals and was important to the Blues up forward, Whiting kicked three all in the opening quarter and Jake Kolodjashnij finished with two.
Nathan O'Donoghue worked hard in the ruck and around the ground to be one of Launceston's best players picking up close to 30 possessions and 12 marks.
Jake and Kade Kolodjashnij were again influential - Jake with his work rate and Kade the Blues' leading possession-getter, again with 35, with Scott Stephens, Kurt McCabe and Josh Woolley other good players.
Robertson finished with three goals for Burnie after a great battle with Blues defender Gary Shipton and Brayden Hayes, Harry Walters, Baldock and Luke Shackleton booted two each.
Eli Templeton was a standout for the Dockers with his pace, Brady Grey won plenty of the ball.
Burnie will host Clarence in next week's first semi-final.