Jan Vertonghen's late header earned Tottenham a 2-1 win at Wolves that moves Jose Mourinho's side within three points of the Premier League's top four.
Spurs seemed set to be held to a 1-1 draw at a wet Molineux after an early Lucas Moura strike was cancelled out by Adama Traore's drive midway through the second half.
But in the first minute of added time, Vertonghen stooped to direct Christian Eriksen's right-wing corner past Rui Patricio to seal a fourth win in five league games for Mourinho.
Wolves, for whom Diogo Jota lashed wide at the death, slip below Tottenham in the Premier League table after seeing their 11-game unbeaten run in the league come to an unfortunate end.
Spurs had taken the lead in the eighth minute, Lucas jinking into the box down the right before smashing an unstoppable angled drive past Patricio and into the roof of the net.
Wolves responded well to the setback, Raul Jimenez firing wide after being set up by Jota, but Eric Dier missed a good chance to extend Spurs' lead before half-time, hitting the post after linking up with Dele Alli.
Alli curled a shot just wide after the restart but Wolves equalised in the 67th minute.
Jota and Jimenez combined to tee up Traore and he teased Vertonghen before thumping a powerful drive beyond Paulo Gazzaniga from 25 yards.
Wolves looked likelier to go on and win the game but Gazzaniga showed good reactions to keep out Romain Saiss's late header, a save that proved key.
Eriksen, who had just replaced Lucas, delivered the corner and Vertonghen found a pocket of space in the box to guide home the winner.
What does it mean? Spurs' Champions League challenge is on
Chelsea's recent stumbles have opened the door to the top four again and Vertonghen's goal moves Spurs within three points of their London rivals – who they play next.
Wolves, meanwhile, were expected to find this season more challenging as they balance domestic and European commitments. They can consider themselves unlucky to have slipped away from the top four - a first defeat since October in any competition was a cruel blow.
Traore continues to add end product
It has been a good season for Traore, who has found new levels to his game despite being asked to play different positions. Given room to roam on the right of the Wolves front three, Traore was a constant menace and took his goal brilliantly.
Kane isolated in Spurs' attack
Having scored twice in last weekend's rout of Burnley, England captain Kane was kept quiet this time out. He had a trio of weak penalty appeals rejected and his first attempt on goal did not come until the 77th minute when a tame header was straight at Patricio.
Wolves go to struggling Norwich City on Saturday. The following day sees Mourinho's men host Chelsea in a huge match for their hopes of qualifying for the Champions League.