Darren Moore hailed the "best moment" of his managerial career as Sheffield Wednesday overturned a four-goal deficit to win 5-1 after extra-time at Hillsborough and earn a 5-3 win on penalties against Peterborough. 

The hosts made a lightning start and got two goals in the first 25 minutes courtesy of Michael Smith penalty and Lee Gregory. 

Reece James made it three and pulled the hosts to within one of Peterborough's aggregate lead with 20 minutes to go — and they sent the game to extra-time with the last kick of normal time when Liam Palmer nudged home from close range. 

A Gregory own goal gave Peterborough the initiative once again in the tie but Wednesday remarkably equalised once again through Callum Paterson, taking the game to penalties. 

And the Owls' date at Wembley was booked when Jack Hunt converted with the last spot-kick after Dan Butler hit the crossbar with the only miss of the shootout. 

Moore said: "For me, it's my best moment in terms of management. 

"To witness it and for it to come here, I couldn't have wished for it to be at a better a place, under the lights here at Hillsborough. 

"Tonight will be special but as I keep saying to them, we have got another game to go. We enjoy tonight and then focus on the Wembley game now. 

"We had a rallying call to get the fans to come out and be in full voice and they were tonight. 

"When the boys were cramping up tonight, the fans kept them going. The boys showed great character."

Moore, 49, added: "They've gone to hurt locker tonight, the boys. Tt wasn't going to take anything less than that to get the job done. 

"We worked on penalties in training. We were ready for it and I was super confident with every single one of them. 

"Credit to the boys in terms of how they went about it. Peterborough have pushed us all the way and for us to win the game it had to come down to a moment like that."