Led by a breakout game from forward Matt Taberner, who kicked a career-high five goals, Fremantle defeated the Lions by 83 points at the Gabba on Saturday afternoon, 23.9 (147) to 9.10 (64).
Both teams started the match with identical 1-10 records, but finished it worlds apart.
The Lions kicked the game's first three goals, but after that it was one-way traffic as Fremantle kicked 12 of the next 13, including a run of nine straight in a match-winning second quarter.
It was the second straight win for Ross Lyon's men who have shaken clear from the bottom of the ladder.
Fremantle should be given plenty of credit as they feasted on the Lions' mistakes, moved the ball quickly and got an outstanding contribution from 22-year-old Taberner.
With Matthew Pavlich watching on from home nursing a groin niggle, Taberner owned the forward 50, opening his account with a contested mark against Harris Andrews in the first quarter and piling on three second quarter goals.
He mixed strong work overhead and nimble work at ground level, highlighted by one snap after he battled Andrews and Daniel Merrett to make the initial contest before roving his own ball.
Chris Mayne also relished the space up forward, kicking four goals, as did Hayden Ballantyne and Lachie Weller, who had claims for best on ground with his 22 polished disposals.
He looks a class player.
Ross Lyon post-match Q & A - round 12
Lyon's policy of playing the youngsters has started to pay dividends, with Taberner and Weller joined by eighth-gamer Connor Blakely (team high 29 disposals) and fourth-gamer Darcy Tucker (19 and two goals) among Freo's most significant contributors.
Lyon says Taberner's game was 'coming for a while'https://t.co/VUPIZf4ak1
— Fremantle Dockers (@freodockers) June 11, 2016
BRISBANE 3.3 4.6 7.6 9.10 (64)
FREMANTLE 3.3 12.3 18.7 23.8 (147)
GOALS
Brisbane Lions: Schache 2, Cutler 2, Taylor 2, Rich, Bewick, Bastinac
Fremantle: Taberner 5, Mayne 4, Weller 4, Ballantyne 4, Tucker 2, Suban, Smith, Sheridan, Walters
BEST
Brisbane Lions: Robinson, Bewick, Cutler, Hanley
Fremantle: Taberner, Barlow, Mayne, Weller, Hill, Blakely, Pearce
INJURIES
Brisbane: Nil
Fremantle: Nil
Reports: Nil
Umpires: O’Gorman, Findlay, Ryan
Official crowd: 12,899 at the Gabba