The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
Jenkins and co made a flying start and moved into a 16-0 lead at half-time thanks to two penalties and a drop goal from Sam Davies, who also converted Hallam Amos’ try.
But Argentina stormed back after the break and reduced the gap to just three points before Davies notched three further penalties to guide the RBS 6 Nations runners-up to a 25-20 win and secure a semi against defending champions South Africa.
"The boys are ecstatic, I have never been in a game that physical, the only word I can use to describe it is brutal,” said flanker Jenkins.
“We spoke before the game about how tough it was going to be and how deep we would have to dig and I think we had to dig a lot deeper than we expected and to grind out the victory at the end in the manner that we did was credit to all the boys in that changing room.”
They are joined in the last four by a record-breaking England side who booked their place in the semis with a 109-0 win over the USA.
RBS 6 Nations champions England scored 17 tries in total, with a hat-trick for captain Alex Day, doubles for Henry Purdy, David Sisi, Ross Moriarty, Joel Conlon, Ben Howard, Tom Stephenson and a try apiece from Ollie Devoto and Tom Smallbone.
Fly-half Will Hooley kicked 22 points while Devoto also added one conversion to book a clash with New Zealand in what will be a rematch of the 2011 final.
Skipper Day said: “You have got to play the best to win it and New Zealand are traditionally the best in the world. All the boys are really looking forward to this one and we are going to have to up our game another level.”
Meanwhile, Ireland were left to rue what might have been after just missing out on a place in the last four following a 31-26 defeat to New Zealand.
Victory would have sent Ireland through as group winners while one more try would have ensured a second bonus point – and possibly the victory – and sent them through at the expense of England.
"Every loss is tough to take when you are a coach, you want to win every game,” said coach Mike Ruddock. “That was a tough battle against quality opposition of course but I am proud of my team, I thought my players were fantastic.”
Elsewhere, hosts France slipped to defeat to holders South Africa, going down 26-19 which means they will meet Ireland in their fifth-place semi-final while Scotland chalked up a first win – edging past Samoa 36-33 and will face Fiji in their ninth-place semi-final.