TAMPA — The Lightning is one period away from being in a very unenviable hole.After two periods, Tampa Bay trails the Columbus Blue Jackets 3-0 in Game 2 of the Eastern Conference first-round series, and is one the verge of sending the team with the NHL’s best regular-season record on the road down two games to none in the series.Two of the Blue Jackets’ three goals have come on the power play, including Matt Duchene’s score at the 1:28 mark of the second period. Duchene also assisted on Columbus’ first two goals.This series had been proof that the regular season really means nothing in the postseason. Tampa Bay's penalty kill unit was one of the best during the season, and Columbus' power-play unit one of the worst.Meanwhile, the league’s top-scoring team has been held scoreless for four straight periods. The Lightning has been outshot 17-13 tonight.The Lightning has come back from a 2-0 deficit to win a playoff series just once in the team’s history, beating the Capitals in six games in 2003. Most recently, Tampa Bay lost to the Caps in last year’s Eastern Conference finals after falling behind 2-0 in that series.