Millwall swept aside high-flying Huddersfield Town to record a morale-boosting victory as Kenny Jackett's side returned to winning ways in style at The Den.
Two goals in as many first-half minutes from Chris Hackett (12mins) and Neil Harris (14mins) put The Lions in command, with Steve Morison heading home his first goal the club with a third four minutes into the second-half.
Although Huddersfield reduced the arrears with Jordan Rhodes' 85th-minute effort, the scoreline flattered the visitors, who could have ended up losing by a far greater margin.
Jackett made four changes to the side that had performed so disappointingly at Gillingham last weekend, with Hackett, Ali Fuseini, Alan Dunne and Dave Martin all returning to the starting line-up.
Defensively, The Lions boss paired Darren Ward and Jack Smith in the middle, with Andy Frampton reverting to left-back and Dunne slotting in to fill the right-back berth.
In midfield the trio of Fuseini, Jimmy Abdou and Hackett provided great support to the front three, whilst not reneging on their defensive duties.
Having shipped two goals in each of their previous three outings in all competitions - and failed to register a solitary goal themselves - Jackett had demanded his side produce a bristling, bustling, energetic display to kick-start their campaign.
And the players certainly responded with a rip-roaring opening 45 minutes during which they established a 2-0 lead.
There were just 15 seconds on the clock when Hackett forced a smart stop from visiting keeper Alex Smithies, whilst a spectacular bicycle kick by Abdou was blocked barely a minute later.
A slick move involving Fuseini, Hackett and Harris set up Frampton after seven minutes, but on this occasion the defender's fierce angled shot was blocked for a corner.
Millwall's early pressure finally paid off on 12 minutes with a fine opening goal. Harris' slide-rule pass was despatched into the path of Hackett, with the latter's fierce drive providing the perfect finish to a storming 70-yard sprint.
The celebrations were still in full swing when Martin swung over a delicious delivery from the left and Harris stole in to guide a diving header past the stranded Smithies.
Huddersfield came into the game as League One's top scorers with 17 goals to their name, but Lee Clark's outfit offered next to nothing as an attacking force and Lions keeper David Forde was a virtual spectator as much during the first half as he was the second.
Any hope the visitors had of clawing their way back were dashed within four minutes of the restart when Hackett's corner was met by Morison, and his header somehow found a way through a packed penalty area and into the back of the net.
Terriers boss Clark responded by bringing on Jim Goodwin and then Lee Novak in quick succession, with home keeper Forde finally called into action with a great save at full stretch to parry Rhodes' piledriver for a corner.
But it was Millwall who were in cruise control; Morison saw his 66th-minute looping header from another Hackett corner held on the line, Harris was inches away from connecting with great crosses from subs James Henry and then Danny Schofield.
Huddersfield offered little resistence, but then somehow conjured a goal out of nothing five minutes from time courtesy of a crisp 18-yard finish by Rhodes.
But despite four minutes of injury-time, The Lions simply shut up shop and saw out the remainder of the game with ease.
Millwall: Forde, Dunne, Smith, Ward, Frampton, Hackett (88mins), Fuseini, Abdou, Martin (Schofield, 78mins), Harris, Morrison (Henry, 69mins). Subs not used: Sullivan, Bolder, Barron, Grabban.
Bookings: Dunne (51mins), Forde (84mins)
Scorers: Hackett (12mins), Harris (14mins), Morison (49mins)
Huddersfield Town: Smithies, Peltier, Skarz, Collins, Clarke, Roberts (Goodwin, 59mins), Simpson (Novak, 64mins), Rhodes, Butler, Pilkington, Drinkwater (Ainsworth, 73mins). Subs not used: Glennon, Clarke, Williams, Berrett.
Scorer: Rhodes (85mins)
Ref: Phil Crossley
Att: 8,502 (away 543)