Patrick Kane comes through with a hat trick by scoring the game-winning goal in the second overtime with 8:20 left to eliminate the defending Stanley Cup champion Los Angeles Kings.
Kane, who finishes with a hat trick, and captain Jonathan Toews connect on their third breakaway of the second overtime to beat Kings goaltender Jonathan Quick to his glove side.
There were nine hits in the first 10 minutes, but only three shots.
Then Kane ended things after Toews skated onto a loose puck high in the Kings' zone and had only one defender to beat. He slips a perfect pass to Kane, who one-times a shot into the net.
Almost two minutes into the period, Kings center Anze Kopitar and left wing Justin Williams have a give-and-go opportunity that Kopitar slips just wide of the goal when he found himself uncontested in front of the goal.
After returning from his one-game suspension, Chicago defenseman Duncan Keith has logged more than 38 minutes of ice time, while Kings defenseman Rob Scuderi is approaching his 36th minute.
One of those shots came from Chicago defenseman Nick Leddy with 13:03 left in the period. Leddy let loose of a slap shot from the point that Quick gloved in traffic.
Here's more play-by-play action from earlier in the game:
Overtime (Kings 3, Blackhawks 3)
One wasn't enough, so Game 5 goes to a second overtime.
The first 10 minutes of overtime flew with only one stoppage, but the second 10 minutes was broken up by icings and neutral zone inefficiency.
Chicago right wing Viktor Stalberg has a brief opening with 5:32 left but Kings goaltender Jonathan Quick squeezes the pads to stop a low wrist shot.
Blackhawks defender Brent Seabrook almost knocks home his second winner in overtime of the postseason with a shot he sends just wide of the goal with a little more than four minutes left.
Kings center Trevor Lewis has a chance on goal with a waist-high shot he sends shortside, but Blackhawks goalie Corey Crawford puts a glove to it with 2:24 left.
The Kings see their playoff lives flash before their eyes when Blackhawks center Jonathan Toews weaves between three defenders and sends a pass to a flanking Patrick Kane, who can't connect with the pass just more than two minutes into overtime.
The Kings take the first four shots in overtime, dominating play for long stretches.
Kings forward Jeff Carter has his share of chances in the extra period, working behind the net to send a flurry of passes to the front of the goal to pressure Blackhawks goaltender Corey Crawford.
With 10:06 to go in overtime, Kings defenseman Jake Muzzin fires a shot at Crawford, who makes a great reactionary glove save.
Immediately after that, Toews heads to the Chicago locker room with what seems to be an equipment issue.
Third period (Kings 3, Blackhawks 3)
And Mike Richards ties it up for the Kings.
The defending Stanley Cup champions aren't done yet as the veteran center, positioning himself in front of the crease, deflects a shot by Anze Kopitar past Blackhawks goaltender Corey Crawford with nine seconds left in Game 5 of the Western Conference finals.
Los Angeles, less than a minute from elimination, pulls goaltender Jonathan Quick with 14 seconds left and a faceoff in the Chicago zone. Kings Coach Darryl Sutter calls a timeout.
Sutter sends Jarret Stoll, Jeff Carter, Kopitar, Richards, Drew Doughty and Slava Voynov out for what could have been the final shift of the 2013 season.
Stoll wins the faceoff against Blackhawks captain Jonathan Toews and the puck goes to Voynov.
Voynov shuffles it to Kopitar, who throws the shot on net before Richards deflects it with his body.
And just like that the Blackhawks take back control of the Game 5 on Patrick Kane's second goal of the night with 3:52 left in the third period to make it 3-2.
The goal comes when Justin Williams is tripped behind the net by Chicago left wing Bryan Bickell.
No call was made on the play and Bickell fires a pass to Kane, who puts the shot high and away from the glove of Kings goaltender Jonathan Quick.
Kings forward Jeff Carter has the optimal chance for a goal with just more than four minutes left off a pass from winger Tyler Toffoli but can't slot it home.
With the score tied at two and the Kings' season on the line, they kill off a Chicago power play, highlighted by a massive hip check hit by Drew Doughty on Patrick Kane.
With 10:15 left in the third period, Kings defenseman Matt Greene strikes Blackhawks right wing Andrew Shaw in the head on a scoring chance, drawing a cross-checking penalty.
Los Angeles kills its second penalty of the game and looks energized following the momentum shift.
The Kings have killed the last seven Chicago power plays.
Chicago's leading scorer, Patrick Sharp, has a breakaway chance with 13:30 left in the third, but Kings goaltender Jonathan Quick parries away the shot.
Kings center Anze Kopitar picks the perfect time to earn his first point of the series, tying the score in Game 5 at 2-2 with a power-play goal with 16:25 let in the third period.
Kopitar deflects a shot by forward Jeff Carter from the point and then pokes the puck through the legs of Chicago goaltender Corey Crawford.
Carter and center Mike Richards, who returned to the lineup after a three-game absence, pick up the assists.
At 17:10, Chicago left wing Bryan Bickell is called for a boarding penalty on defenseman Jake Muzzin to give the Kings a power play.
Moments before, Kings qoaltender Jonathan Quick makes a spectacular stretch save on a shot by Chicago defenseman Johnny Oduya, who had an open-net chance to double the lead.
Second period (Blackhawks 2, Kings 1)
The defending Stanley Cup champions win the second period, but still find themselves down 2-1 heading into what could be their final 20 minutes of the 2013 season.
Los Angeles rebounds after a slow start with a shorthanded goal from left wing Dwight King with 10:32 left in the second period, but let a potential tying power-play opportunity pass by.
Chicago has outshot the Kings, 16-12, through 40 minutes, while the Kings outhit the Blackhawks by a 30-22 margin and have won 19 of 34 faceoffs.
Goaltender Jonathan Quick bounces back from giving up two goals in the first five shots by making two big breakaway saves and collecting 14 saves heading into the final period.
In a stat that doesn't bode well for Los Angeles, Chicago is 7-0 in the postseason when taking a lead into the third period.
The Kings can't capitalize on an opportunity to tie the score during their first power play of the game.
Los Angeles went on the power play after Chicago captain Jonathan Toews trips Kings captain Dustin Brown with 4:22 left in the second period.
Chicago came into Game 5 with the top penalty-killing unit in the playoffs, only allowing two goals in 56 chances.
The Kings are 1 for 15 in the series on the power play and haven't converted on their last man-advantage opportunities.
Before the penalty, Chicago right wing Marian Hossa has another big chance at a goal on a 2-on-1 break with top-scorer Patrick Sharp but Kings defenseman Matt Greene blocks the shot with his skate.
Hossa has been an X-factor of sorts in the playoffs for Chicago, who has a 6-0 record when the Slovak international scores.
As Game 5 unfolds, the intensity has heightened a few notches with a Los Angeles shorthanded goal to cut the Chicago lead in half.
Kings left wing Dwight King and right wing Justin Williams started a 2-on-2 rush 9:28 into the second period down when trailing, 2-0. Williams put the shot on goal before King sent a rebound attempt past Chicago goaltender Corey Crawford for his second goal of the playoffs.
It was the first shorthanded goal scored by the Kings and the first given up by Chicago in the 2013 postseason.
The first penalty of the game comes on a forearm shiver from Kings left wing Dustin Penner to Chicago center Dave Bolland 7:50 into the second period, which preceded the shorthanded goal.
Chicago left wing Bryan Bickell has the best shot at a goal in front clogging the crease just seconds before the goal.
Moments later, Blackhawks right wing Marian Hossa has a breakaway chance pushed away by Kings goaltender Jonathan Quick to keep the score at 2-1.
With 16:23 left in the second period, Chicago right wing Andrew Shaw shoulders Kings center Mike Richards into the boards.
The hit drew a raucous response from the United Center crowd, as well as Kings left wing Kyle Clifford, who went after Shaw for the blow.
The Kings have outhit the Blackhawks 27-17 so far.
First period (Blackhawks 2, Kings 0)
Based on the feel of the first period between the Kings and Blackhawks, Los Angeles is lucky to be down only 2-0.
The Hawks outshot the Kings, 10-4, forcing goaltender Jonathan Quick to make eight saves.
Quick let two goals through within the first six minutes of the game on the just five shots.
One came on a deep blast from Chicago defenseman Duncan Keith that slipped between Quick's pads when it seemed to be an easy save.
The other arrived only 2:17 later on a miscommunication between Quick and his defenders.
The 2012 Conn Smythe Trophy winner has had his share of miscues in what has otherwise been a stellar postseason, not looking himself throughout the Chicago series, starting with a Game 2 benching after giving up four goals.
Winger Justin Williams leads the Kings with two shots on goal while center Anze Kopitar, defenseman Drew Doughty and winger Dustin Brown remain point-less in the series.
Trailing 2-0, the Kings respond with three consecutive shots on goal.
The Kings log their first shot on goal of the game off a deep shot from the slot by forward Jeff Carter with 9:18 left in the period.
With 7:25 left, Kings left wing Dwight King and center Anze Kopitar each barely miss off a rebound chance from a Justin Williams wrist shot that would have cut the lead in half.
Despite two mistakes that land mostly on his shoulders, goaltender Jonathan Quick seems to have gotten past the two early goals.
Quick makes a solid save on a near-breakaway chance from Blackhawks left wing Viktor Stalberg, who beat defenseman Robyn Regehr down the end boards and threw the puck on goal.
The Kings goaltender has a 2.88 goals-against average in this series, up from his 1.71 average for the 2013 postseason.
Only two minutes after taking a 1-0 lead, Chicago stikes again with 14:01 left in the first period to double its lead.
Patrick Kane scores his second goal in as many games off a miscommunication between Kings defenders and goaltender Jonathan Quick.
Quick and his defenders thought an errant pass would turn into an icing call, but the officials waved it off.
The puck bounces in front of the crease, where Kane picks it up and patiently waits to fire at an open net, with Quick and Kings defenseman Drew Doughty getting tangled in front of the goal.
The goal was Kane's fourth of the postseason.
With a 2-0 lead, the Blackhawks have outshot the Kings, 7-0, in the first 10 minutes of the game.
And we're off.
Kings center Mike Richards, returning from concussion-like symptons, is not partnered on his usual line with former Flyers teammate Jeff Carter.
Coach Darryl Sutter elects to stick with the line of Tyler Toffoli-Carter-Dustin Penner, which has arguably been the Kings' top line of the series with a combined 10 points.
With less than four minutes into the game, Chicago defenseman Duncan Keith makes his presence known after serving a one-game suspension in Game 4.
Keith took a deep slap shot from just in front of the blue line and snuck it past Kings goalie Jonathan Quick. It was a save the 2012 Conn Smythe Award winner should have saved, but instead the Blackhawks take a 1-0 lead.
Los Angeles is 1-5 when their opponent scores first this postseason.
Defenseman Michael Rozsival picked up the assist.
Just when the Kings needed a little offensive spark, center Mike Richards will return to the starting lineup for Game 5 after missing the last three games.
Richards was out with concussion-like symptoms after taking a hit to the head from Blackhawks defenseman Dave Bolland in Game 1.
The former Flyer came into the Western Conference finals as the team's leading point-getter, with 10 points on two goals and eight assists.
The Times' Lisa Dillman reports the lineup card shows Coach Darryl Sutter inserting Richards and forward Jordan Nolan into the lineup.
According to the report, out of the lineup comes center Brad Richardson and Colin Fraser.
Earlier in the day at the morning skate, Sutter said there was a "50/50 chance" Richards would return to action.
Two weeks ago, the Chicago Blackhawks found themselves on the wrong end of a 3-1 series deficit to Detroit before reeling off three consecutive victories to forge their way into the Western Conference finals.
Today, the Kings have their sights set on starting a historic run of their own, where the phrases "do-or-die" and "one game at a time" run their course.
The Kings have rallied from a 3-1 deficit only once in franchise history -- against Gretzky's Edmonton Oilers in 1989.
Following a devastating 3-2 loss in Game 4 that broke a 15-game home winning streak Thursday, the Kings will look to do something in Chicago that they have done only once this postseason: win a game on the road.
Center Mike Richards, who has been out with concussion-like symptoms since taking an unpenalized hit to the head in Game 1, has a "50/50 chance to play" in Game 5, reportsTthe Times' Lisa Dillman.
"It's progress," Kings Head Coach Darryl Sutter said during Saturday's morning skate. "But I don't want to say anything. I said last time, prior to Game 2 that he was playing. Then he didn't."
The once formidable first line of Anze Kopitar, Justin Williams and Dustin Brown will reunite. Brown and Kopitar have combined for only 11 points this postseason, down from last year when they led the NHL with 20 points each.
Kings defenseman Slava Voynov has been on a tear of late with eight points in the last seven games and has goals in each of the last two games.
Chicago All-Star defenseman Duncan Keith will return to the lineup after serving a one-game suspension for a retaliation high-stick on Jeff Carter in Game 3.