Steve Morison and Paul Robinson were the heroes as Millwall defeated Huddersfield to reach the League One play-off final for the second successive year.
Morison has been sensational for the Lions this season and tapped home his 23rd of the campaign in all competitions after Town keeper Alex Smithies parried a cross into his path midway through the opening half.
As the match became increasingly stretched after the break, Scott Barron might have calmed the home supporters' nerves but he saw his strike rebound to safety off the crossbar.
However, Robinson headed home a corner from Barron with 10 minutes remaining to settle an edgy, at times error-strewn but always engrossing match that the home team deserved to win to secure a 2-0 aggregate victory after a goalless first leg.
Millwall lost just once at home during the regular season and their victory on Wednesday keeps alive their hopes of securing their first victory through the play-offs at the sixth attempt.
Manager Kenny Jackett will be hoping his team can go one better than last year's defeat against Scunthorpe when they meet Swindon at Wembley on 29 May.
The Lions defeated the Robins 3-2 at the New Den in their final home game of the regular season and can go into their final match of the campaign full of confidence after a strong performance against a Terriers side left to rue missed opportunities in the first leg.
Millwall manager Kenny Jackett:
"I'm delighted, very proud, but that's half the job done.
"The players put in a terrific performance and brought the crowd into play with their effort and application. Huddersfield are a very good team and you look at their average age and they will come again.
"To keep them to a clean sheet over 180 minutes is a great achievement, but we are halfway there."
Huddersfield manager Lee Clark:
"I feel the two goals we have given away aren't the greatest, but they were little mistakes.
"We had some good situations but didn't show the belief. We have some good young players but maybe sometimes I have more confidence in them than they have in themselves.
"Come the end of June, when we report back for pre-season, we have to realise that we don't want to feel this feeling again."
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