Seth Jarvis scored his 31st goal of the season for the Hurricanes (46-27-5), who have lost four straight (0-3-1) but clinched the No. 2 seed in the Metropolitan Division and home-ice advantage against the New Jersey Devils in the Eastern Conference First Round by earning a point.
Frederik Andersen made 24 saves for Carolina, which rallied from down 4-2 after two periods to force overtime.
"It's adversity like that, and you've got to battle through. We're going to run into something like that in playoffs, for sure,” Carolina captain Jordan Staal said. “It's trusting our game and keep moving forward and finding ways. … Especially in playoffs, it's going to be a battle. It'll be a lot of fun, and tonight was a good playoff-kind of style."
Jordan Martinook pulled the Hurricanes to within 4-3 with a wrist shot from the left point at 4:42 of the third period.
Jarvis then tied it 4-4 when he redirected a pass from Sebastian Aho with Andersen pulled for the extra skater at 18:15.
“The middle of the ice kind of opened up for me to skate, so I was just trying to take as much as possible,” Jarvis said. “And then [Aho’s] a very high-skill player and found me backdoor.”
Logan Stankoven put Carolina ahead 1-0 at 5:42 of the first period, scoring from the left circle off the rebound of Andrei Svechnikov’s shot moments after a Hurricanes power play ended.
Jackson Blake made it 2-0 at 7:14. Lindgren appeared to save Blake’s shot from the low slot, but Tom Wilson pushed Blake into Lindgren, and a video review of the play determined that the puck crossed the goal line.
Dubois pulled the Capitals to within 2-1 at 18:06 when he worked a give-and-go with Andrew Mangiapane on the rush and poked the return pass by Andersen for a power-play goal.
Carolina outshot Washington 15-5 in the first period.
“I thought the first period we deserved way more. Being only up one, that’s tough,” Hurricanes coach Rod Brind’Amour said. “That was the part, if we look back on the game it’s probably where we needed to get more out of.”
Strome tied it 2-2 at 10:50 of the second period, scoring off a rebound from the slot on a power play.