The All Blacks Sevens have overcome Argentina 22-12 to seal back-to-back world series tournament wins at Los Angeles, stretching their lead atop the competition standings.
With three first-half tries, New Zealand held a 17-0 advantage at the break, but had to weather a strong comeback from the South Americans, who had deprived them victory at their final home event at Hamilton last month.
Speedster Moses Leo opened the scoring, showing too much speed from inside his own 22 to race away, before Leroy Carter ran in a try double before halftime.
The Kiwis probably sensed that might not be enough, after blowing a 12-0 lead against the same opponents in that Hamilton final, and sure enough, Argentina came back strongly, with tries to Tobias Wade and Agustin Fraga closing to 17-12.
But needing another try to snatch victory, the Argentinians made a crucial error, when their kickoff did not travel 10 metres, gifting possession to the All Blacks Sevens, as seconds ticked off the clock.
Ultimately, Brady Rush - son of NZ sevens legend Eric Rush - clinched the result with a try in the final seconds, extending his team's run of success in their fourth straight final, after taking out the Sydney event last month.
"We've been working hard for a few years now and made a lot of finals last year," said captain Sam Dickson. "We're finally clicking and that hard work is paying off."
New Zealand extend their world series lead to 21 points, with Argentina leapfrogging South Africa into second. Next weekend, the teams head north to Vancouver, where they'll be joined by the women's teams.
All Blacks Sevens 22 (Carter 2, Leo & Rush tries; Rokolisoa conversion) Argentina 12 (Wade & Fraga tries; Wade conversion)
Earlier, New Zealand scored two quick try doubles at the beginning and end of the contest to secure a 33-17 victory over Australia in the semis, but the tie didn't start the way Clarke Laidlaw's men would've planned, with their rivals crossing first through Henry Paterson.
Unlike their quarter-final win over Great Britain, New Zealand fell off several tackles in the opening couple of minutes, allowing Patterson to touch down.
They hit back right from the restart, with the ball falling fortuitously to Carter, who raced away from halfway to score.
Playmaker Akuila Rokolisoa crossed just moments later, as New Zealand pressured Australia from their own kick and Joe Weber found the series topscorer with an offload.
Australia were asked to make many tackles, with a telling decision to kick out before halftime showing their fatigue at 14-5.
They could do little to stop New Zealand's charge, as Carter grabbed his second try, beating two defenders to score underneath the goalposts after the break.
Paterson offered some respite for the reigning world series champions, stretching his long legs to grab a double, but that just delayed the inevitable.
Roderick Solo put a clever grubber kick through and won the race to extend the lead, before unselfishly turning down the chance to get another.
After stepping his way through the Australian defence, the speedster gave the ball to replacement Lewis Ormond to dot down.
Australia would have the last say with a try to Darby Lancaster, but it was too little, too late, as the Kiwis booked their spot in a fourth straight world series final, after winning their last outing at Sydney.
They will face Argentina, who edged Fiji 20-17 in the other semi-final, and will extend their margin atop the world series rankings, regardless of the result.
All Blacks Sevens 33 (Carter 2, Rokolisoa, Solo, Ormond tries; Rokolisoa 2 conversion, McGarvery-Black conversion) Australia 17 (Paterson 2, Lancaster tries; Roache conversion
Earlier, the All Blacks Sevens beat poolplay standouts Great Britain in their quarter-final clash.
New Zealand's intensity on defence saw them keep their opponents scoreless in the second half and claim a hard-fought 24-12 victory.
Carter needed just a minute to find the tryline, after Rush committed several defenders, allowing his teammate to run clean through from inside his own half.
The NZ men extended their lead through Leo, after he beat his opposite on the outside to go over in the corner.
Even after losing Tom Emery to a yellow card for a deliberate knock on, Great Britain fought back to tie the game 12-all at halftime.
Max McFarland and Kaleem Barreto both crossed for tries, after ill-discipline crept into New Zealand's defence, allowing their opponents several restarts to attack from.
Rokolisoa extended his lead on the leaderboard with a try right after the break, linking up with Amanaki Nicole with a short lineout throw and return pass.
Down by just five points, Great Britain searched for an equaling try, but came unstuck against a ferocious All Blacks Sevens defence.
Their efforts without the ball soon rewarded them in possession, with Roderick Solo scoring before fulltime to seal the victory.
All Blacks Sevens 24 (Carter, Leo, Rokolisoa, Solo tries; Rokolisoa conversion) Great Britain 12 (McFarland, Barreto tries; Emery conversion)
