BOSTON - Clemson’s kicks kept winding up in the wrong hands.

Jeff Smith returned one kickoff for a 96-yard touchdown and had three other long runbacks to help Boston College force overtime on Saturday, then Jolonn Dunbar blocked an extra point in the second OT to lead BC to a 34-33 victory over No. 18 Clemson.

“After they scored, I just knew I had to try as hard as I could to get through there,” said Dunbar, who deflected Jad Dean’s point-after attempt. “I knew our offense would score. I wanted to put an end to it as quickly as possible.”

Ryan Ohliger, who missed a 36-yard field goal in the fourth quarter, kicked a 35-yarder on BC’s first possession of overtime. Clemson went backwards after a first-and-goal from the 3 and settled for a tying field goal; then, after Dean was blocked on Clemson’s second possession, L.V. Whitworth scored on a 6-yard run and Ohliger split the uprights for the game-winning PAT.

“I would say special teams hurt us,” Clemson coach Tommy Bowden said. “I don’t ever remember a game coming down to an extra point. (We didn’t) cover kicks. I don’t think it takes a genius to figure out how we’d win the game.”

It was the second consecutive year BC (2-0, 1-0 Atlantic Coast Conference) has beaten Clemson (1-1, 0-1) in OT. Last year, the Eagles took a 10-0 lead in their first-ever ACC road game before beating the Tigers 16-13 in overtime.

“Losing in overtime two years in a row is tough to swallow,” said Clemson quarterback Will Proctor, who completed 25 of 40 passes for 343 yards and two touchdowns.

This time, BC came back from 10-0, 17-7 and 24-17 deficits to set off a celebration in Chestnut Hill. It was the first home victory over a ranked team for BC coach Tom O’Brien in 10 seasons at Boston College.

“We don’t do anything easy,” O’Brien said, noting that bad ball-handling forced BC inside its own 10 yard-line on its first two drives. “We were really excited to play this game and I think it showed. A lot of things went wrong there early.”

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One of them was an muffed kickoff by Smith that left BC on its own 8. But he followed that with returns of 45, 39, 96 and 29 yards to keep the Eagles in the game. His 213 return yards were one shy of the school record.

“After that happened, I got my head back in the game,” Smith said. “I said, ’I can’t let it end like that.’ There was a lot of support from the sidelines. They said, ’Forget it. There’s still a lot you can do.”’