Mika Zibanejad's natural hat trick in a 2:38 span in the third period led the Ottawa Senators to dramatic 6-4 comeback victory over the Calgary Flames on Saturday night.

Zack Smith, Nick Paul and Jean-Gabriel Pageau into an empty net also scored for Ottawa (30-27-6). The Senators have won five of their last six and remain six points back of the Pittsburgh Penguins and the second wild card spot in the Eastern Conference.

Johnny Gaudreau had two goals and an assist to lead the way for Calgary (27-31-4). Joe Colborne and Sean Monahan also scored. Winless in their last four, the Flames open up a four-game road trip in Philadelphia on Monday.

Trailing 4-2, Zibanejad got the rally started at 6:10, beating Joni Ortio on a wrist shot.

At 7:59, he tied the game scoring into an empty net after Ortio was interfered with by Bobby Ryan. However, the contact happened outside the crease and the goal was allowed to stand after Flames coach Bob Hartley challenged it.

Forty-nine seconds later, Zibanejad capped his first career three-goal game, chipping the puck into the net from in close. The 22-year-old Swede entered the game with one goal in his previous 15 games.