As ever, Liverpool left it desperately late on Wednesday night - scoring twice in the final five minutes to progress to the FA Cup Fifth Round.
Late heroics from Raheem Sterling and Philippe Coutinho were enough to see Brendan Rodgers' side through, but the game was not without it's scares.
After a 0-0 draw at Anfield in their first meeting, it seemed that Neil Lennon's side were going to profit from a contentious decision from referee Roger East, as they lead into the final minutes courtesy of Eidur Gudjohnsen's 59th minute penalty.
A combination of Andy Lonergan, a stubborn defence and the woodwork - Liverpool were constantly denied in the replay. Raheem Sterling, Jordan Henderson and Emre Can all had to watch their efforts rebound back off Lonergan's post or crossbar and it just didn't look like it was going to be the Premier League side's day.
The 5,000 travelling Liverpool fans were visibly frustrated. Understandably so. Neil Lennon's side represent a tough test, but a side with the strength that the Reds fielded should be overcoming a side who had centre-back Matt Mills playing alongside a 19-year-old playing just his third professional appearance up-front.
With just four minutes of normal time to hold out for the hosts, suddenly the game was turned on it's head. In one sweeping move, Emre Can's terrific ball up and over the defence found Raheem Sterling, and he carefully guided his volley beyond Lonergan to equalise.
After a whirlwind of pressure, shortly into the five minutes added on, up popped Philippe Coutinho for the winner. The 22-year-old Brazilian, who has been in electric form in the last few months, ran the show all evening at the Macron Stadium and was there when it mattered in the 91st. Collecting the ball just outside the 18-yard box, Coutinho moved his weight onto his right foot, jinked past his man and unleashed a dipping volley that nicked off the underside of the crossbar and found the back of the net. Just like that, 10-man Bolton's hard work had all been undone and once again, the Reds had turned it around late on.
Not that it wasn't coming. The Reds threatened throughout, as usual, but struggled to take advantage of their opportunities. Their attacking impetus was boosted hugely by Jordon Henderson's arrival, with the midfield pivot of Joe Allen and Steven Gerrard failing miserably beforehand. Emre Can's push into the midfield in the final 10 minutes proved telling too. The Reds were much more effective driving from deep with those two in the centre, but credit to Bolton and Neil Lennon - they certainly gave Liverpool a good scare.
Ultimately, the sending of Neil Danns played a large part in the end result. The Liverpool-born, Liverpool-supporting defender was given a second yellow for a rash tackle in the 66th minute - and Liverpool took advantage of the men in white's weary legs in the closing minutes. Still, Wanderers could still have seen it off before Sterling and Coutinho's strikes at the death.
Gudjohnsen and 19-year-old Zach Clough both had good opportunities, heading straight at Simon Mignolet and blazing just wide of the Belgian's post after a tricky run upfield. Somehow, a wasteful Liverpool were let-off.
It was almost a crushing season setback, had it not been for a magical little Brazilian who had committed his long-term future to the club only the day prior.
Reds fans will certainly be pleased to see that Coutinho, who has been in excellent form since December, is adding a consistency to his game and really affecting games in the final third - with two goals and an assist in his last two appearances in league and cup.
But whilst the narrative was taken by the 22-year-old, the game should not forgotten for the fact that it was Steven Gerrard's 700th appearance for the Reds. What a way to mark such a milestone, too. Joining only Ian Callaghan and Jamie Carragher in the post-700 club, Gerrard wasn't as inspiring as he was in the previous round at AFC Wimbledon, but he'll be delighted to have gotten one step closer to another showpiece final. He struggled in the midfield two, and failed to make the desired impact when pushed further forward, but there is still hope that the 34-year-old can see off his Anfield career in perfect style.
The FA Cup Final falls on Gerrard's 35th birthday, and what better than to spend it at Wembley, possibly lifting some silverware in his final game before leaving for the MLS.
There's still some way to go yet, though. Crystal Palace away is the next tie, and it's a tough test. The Reds have been stung on their last two visits there, the infamous 3-3 draw last season and a bitter 3-1 loss early into the current campaign. To overcome Alan Pardew's rejuvenated Eagles will be a tough game, but with so many big rival teams out of the competition - Arsenal and Manchester United are the only other "big" tests left.
As they learned at the Macron Stadium on Wednesday, they can ill-afford to squander so many opportunities. Better teams and better players will make you pay, as Liverpool often learned earlier in the season.
But the revival is now well and truly underway. Having lost just two of the last 17 in all competitions, Brendan Rodgers' side are slowly getting into gear. As Daniel Sturridge finds his fitness, Liverpool will start to become more lethal in front of goal, whilst as long as Coutinho and Sterling continue their inspired form - the Reds will have plenty of threat from all angles.
Defensively, things are shoring up. Aside from a disputable penalty decision, the Reds dealt with everything Bolton had to throw at them. They've kept a number of clean sheets in 2015, conceding just two penalties inside the 90 minutes of their last seven games in all competitions.
Things are looking promising, and the second-half of the season can yet be a memorable one - but next up an all-too familiar opponent will be looking to shroud the Reds' recent upsurge in form, in misery.
Everton are the obstacles between Liverpool and a fourth straight Premier League win as the Reds look to guide themselves through a tricky February fixture list. Roberto Martinez' side still pose their threats, regardless of their disastrous form, and they cannot be underestimated. This is one that Rodgers needs to win, and if he does, who knows what's on the horizon.