Nathan Lyon's long-awaited 400th Test wicket was quickly followed by three more to break England's resistance as Australia rushed towards victory on day four of the Ashes series-opener at the Gabba.
Resuming on 2-220 and just 58 runs shy of making Australia bat again, England lost eight wickets in the first session to be all out at lunch with an 19-run lead.
Off-spinner Lyon had bowled 33 wicketless overs in Brisbane, as Joe Root and Dawid Malan tamed the attack on Friday to bring England back from the brink.
But, after taking his 399th Test scalp in January, Lyon finally rejoiced when Malan's (82) inside edge was snaffled by Marnus Labuschagne at silly point in the fourth over of the day to end a 162-run stand.
Cameron Green (2-23) then claimed the prized scalp of Root (89) thanks to some subtle outswing with the old ball, before Lyon had Ollie Pope edging a rash cut shot to Steve Smith for four.
Lyon finished with 4-91, Ollie Robinson left to regret a reverse sweep that lobbed straight to Travis Head before Mark Wood was clean-bowled.
England, who trailed by 278 after the first innings, had started the day dreaming of an unprecedented Ashes win.
But when debutant skipper Pat Cummins squared up Ben Stokes (14), England were six down and still 12 runs behind.
Injury fears for Josh Hazlewood were officially put to rest when the Australian quick took the new ball and chimed in with the wicket of Jos Buttler.
He had only bowled eight overs on Friday and none in the final session during England's rearguard.
Hazelwood bowled six overs straight on Saturday morning in a good sign ahead of the second Test in Adelaide starting on Thursday.
It was Root's seventh unconverted 50-plus score in Australia across three tours and 10th against them in total since his last Ashes ton in 2015.
Opening batsman David Warner (bruised ribs) remained off the field on Saturday but is able and expected to bat.
A Test already plagued by broadcast issues that denied umpires the use of some decision-review technology then copped it's biggest hit on Saturday morning.
The feed of day-four's action at the Gabba stopped for approximately 15 minutes, during which Fox Sports, the Seven Network and TV stations around the world had no cricket to show.
The situation improved slightly, with one camera in use for a short period, before normality resumed.
The catalyst was a power issue affecting the broadcast compound at the ground.
Play continued throughout the disruption, albeit under conditions of a bygone era in which there was no third umpire.
