Last years English League 1 playoff semi final Sheffield Wednesday did an insane comeback, and then went on to win the playoffs and get promotion.
Down 4-0 in the first leg away from home, second leg back home, 2-0 at half time, and then 3-0 at 90 mins. 98th minute they score the 4th to tie it on aggregate and send it to extra time. 105th minute SW concede due to an own goal, meaning they're gonna lose. 112th minute they score the 5th making it 5-1 and equal on aggregate, sending it to penalties, where they then won.
Obv they then went onto the final and won 1-0 with a 123rd minute goal to promote them. Such an insane game and probs one of the best comebacks ive seen in recent years