Back-up centre-back Connor Allan scored a stunning 90th-minute goal on his first Falkirk start to complete a brilliant turanround against Dundee and hand his side a first home Scottish Premiership win of the season.

The former Rangers youth player was called up amid a raft of injuries in John McGlynn's defence and delivered the decisive moment.

Allan strode from near the halfway line into the box, cut inside one defender, rolled the ball with his studs and stroked the ball with the outside of his boot into the far corner.

It sent the home fans absolutely wild as they went on to celebrate a first top-flight win at home since 2010 after the game completely changed after the break.

Clark Robertson had headed Dundee in front from a corner, as he had done in the club's first win over Celtic for 24 years last Sunday, but Steven Pressley's side failed to build on that momentum.

The energy shifted early in the second half when Dundee goalkeeper Jon McCracken played a loose pass out from his goal which ended with Calvin Miller hitting the bar.

From that moment on Falkirk looked energised and Dundee were spooked such that the equaliser felt inevitable on 55 minutes.

A ball to the back post was smashed across goal and Robertson failed to adjust as he clattered the ball into his own net this time.

Ross MacIver hit the post and McCracken kept out efforts from Miller and Dylan Tait as Falkirk kept coming, before Allan's unexpected brilliance won the game and moved Falkirk up to fourth.

Dundee drop to 10th and will rue their second-half performance, but also a controversial moment going against them.

When they led 1-0 Ethan Hamilton appeared to be caught by Kyrell Wilson after winning the ball in the box.

However, the referee gave the free-kick to Falkirk and booked Hamilton.

Wilson had already been booked, so had video assistant Andrew Dallas felt differently Dundee would have had a penalty and probably a man advantage for the entire second half.

They got no such break, though, and slipped to a fifth defeat of the season.

Everything about Falkirk screams stability and consistency, which means they are defying the odds in this early part of the Scottish Premiership.

McGlynn has taken a squad from League 1 to the top flight in two seasons, playing attractive football in a 4-2-3-1 formation with little tweaks and adaptions here and there.

So many of the players have stepped up from the third tier which inevitably meant sceptisim about how they would handle the Premiership, but McGlynn's consistency of message, coaching, and selection means everyone is on the same page.

It was typified by Allan's performance as he stepped into a makeshift backline and was given the confidence to do his job and more, surging up the pitch to win the game.

For all three of their league victories they have had to weather an early storm and have managed to show resilience and bounce back, retaining belief in each other and their manager.

McGlynn has hinted he would like to make a run for the top six, and while it is a little early for that talk, they are trending in the right direction.

Dundee ending a 24-year win drought against Celtic was supposed to be the start for them and under-fire manager Pressley.

But this result means all the same questions emerge. After taking the lead they looked happy to soak up pressure rather than press home their advantage, and the reality is they are bottom of the charts when it comes to attempts on goal in the Premiership.

After the 4-0 cuffing at Pittodrie the manager said he had been too ambitious and they needed to focus on being hard to beat again.

But they are not hard enough to score against, and the attempt at solidity has come at the expense of creating chances.

That said, they probably should have had a penalty when 1-0 up and Falkirk would likely have been reduced to 10 men.

It was a game-changing call which Dundee will rue.

Falkirk manager John McGlynn: "I'm absolutely delighted, we had to do it the hard way coming from behind again.

"It's nice to get [a first home win], it's back-to-back wins after Motherwell last week.

"What can you say about Connor Allan's goal? It was absolutely incredible. It'll be goal of the week, if not goal of the month, season or whatever.

"The resilience, character and spirit of the players to fight back once again, I'm still left in doubt what's going to happen when we go in front."

Dundee manager Steven Pressley: "We went in at half-time with a deserved lead and acquitted ourselves well in the first half.

"We had good organisation, pressed at the right times and looked a threat. But we were under no illusions that Falkirk are a very dangerous team and aggressive in their second-half performances.

"The disappointment was we didn't match their aggression in the opening 20 minutes of the second half. The subs came on and gave us a real impetus and changed the flow of the game.

"In the last 15 minutes we looked the more likely side and just as we were getting some pressure we lose such a poor goal."

Falkirk travel to Celtic on Wednesday night (19:45 GMT) as midweek Premiership action returns, but Dundee sit that round out and next play against leaders Hearts on Saturday (15:00).