Result: Samoa 33-36 Scotland
Scotland qualify for quarter-finals, will face Australia or Wales
Laidlaw scores 26 points as Scotland come from behind
Five tries in a frenetic first half at St James' Park
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Scotland 29-26 Samoa
Gavin Hastings
Former Scotland full-back on BBC Radio 5 live
Quote MessageScotland are getting involved in a physical battle. David Denton, the Gray brothers...they're all wanting to impose themselves. The fact is they are up against very big Pacific Islanders and they love nothing more than putting their bodies on the line. There's going to be some bruised bodies after this."
Image source, Rex FeaturesGood work from Tommy Seymour, who wins the ball back after a team-mate is stripped of possession out wide.
Box-kick from Greig Laidlaw, but no chase. David Denton gets his mits on Tim Nanai-Williams eventually. And bundles him into touch.
Midfield skirmishes, but Samoa have dangerous runners to make this a very nervy situation as the clock ticks down.
As the penalty count continues to rise, the Daily Telegraph rugby correspondent Mick Cleary feels that Samoa are getting the rough end of referee Jaco Peyper's decisions.
Samoa's penalty count is up to 16, they have lost the lead but are lucky not be further behind, thanks to the misfiring Greg Laidlaw.
The Scot has scored five from seven penalties, but missed his last two kicks, shown in red below.
How crucial will those misses prove to be?
Image source, OptaUgly from the Scotland backline. A called move does not translate off the playbook pages as Finn Russell bullets a pass at Stuart Hogg's head from close range.
Hoog, who has George Pisi breathing down on him, knocks on.
Tim Swinson has come on for Jonny Gray in the Scotland engine room by the way.
Image source, Getty ImagesEvan Samuel: Samoa's next replacement looks like he should come with fire escapes. I've seen smaller houses.
Alexander Robertson: Three-point lead isn't enough. We need a try and fast or it's going to end in tears.
Scotland 29-26 Samoa
Samoa replacement Anthony Perenise announces himself by giving away a penalty with a "neck-roll" clearout on John Hardie.
That is a cheap-shot. Greig Laidlaw misplaces his own shot at goal though.
The kill zone, the pointy end, squeaky-bum time, whatever you want to call it, we are getting to it.
A little over 15 to play.
Scotland 29-26 Samoa
A trio of changes for Samoa as Viliamu Afatia, Anthony Perenise and Vavae Tuilagi come on to inject some fresh legs.
Jack Lam, cousin of the great Pat Lam, is peskier than a Highland midge at the breakdown.
He limpets over the top of the tackled David Denton and the Scottish heavy brigade are too slow getting there.
Samoa, who have been stumbling since the break, have a toehold in the half.
Steven Hunter: Other teams seem to get better as the tournament goes on...not Scotland.
Robert Stables: Cheering Scotland from the middle of the Caspian Sea.
Image source, Getty ImagesSamoa's penalty count is creeping up in this second-half and has cost them the lead.
Image source, BBC SportScotland 29-26 Samoa
Samoa's discipline is fraying. Another penalty given away. It is on halfway, but Greig Laidlaw's boot is hot.
Not hot enough though.
The Scotland captain gives it a clout but the extra effort sends the ball off line and wide.
Scotland 29-26 Samoa
Josh Strauss comes on for Ryan Wilson in the back row. His side could do with some big beardie ball carriers.
Scotland 29-26 Samoa (Laidlaw)
Ryan Wilson barrelling through the middle, a Samoan defender off their feet at the breakdown and another Scotland penalty.
Greig Laidlaw drills over his seventh kick from seven attempts and Scotland lead for the first time.
Plenty more sting left in the tailend of this one though.
Image source, Getty ImagesScotland 26-26 Samoa
The crowd love that decision. This is all about the big W.
Laidlaw strokes over the kick to justify his pick and level the scoreboard.
Scotland with another penalty just outside the Samoa 22m.
Sakaria Taulafo on the loose-head side of the front row was boring in.
Kick for position or points?
After being burned earlier in this half, Laidlaw points to the posts.
Samoa centre Reynold Lee-Lo is having a stormer and is his side's most dangerous player on the attack.
He has run a game-high 120m, had eight carries, beaten six defenders and had five clean breaks.
In comparison Scotland's top attacker, winger Sean Maitland, has run just 27m.
Image source, Getty ImagesForty-eight minutes gone and we have just had the third scrum of the match.
I haven't missed the shove-and-reset-fest to be honest.
Scotland 23-26 Samoa
Gavin Hastings
Former Scotland full-back on BBC Radio 5 live
Quote MessageThis is a strange game. Scotland are caught between two minds...they are not quite sure what kind of game they should be playing. There is a long way to go and you just sense Scotland just need to get a try and inch ahead. Once they are ahead I feel they will stay ahead. I'm not at all worried."