Chiefs head coach Dave Rennie has expressed his delight with his side's 30-26 victory over the Jaguares in Buenos Aires on Saturday.
A final pass from Aaron Cruden – in the 77th minute – sent his half-back partner replacement Brad Weber over for the winning try.
The two-time champions' boss was jubilant with the manner in which his side never gave up and capitilised on the home side's mistakes.
"Obviously we're elated, massive amount of character shown tonight," Rennie told Fairfax Media.
"If you look on paper we've got a pretty inexperienced mob, we're obviously missing a few players and have got a lot of guys who are new to this level.
"So we're just really impressed with not only the effort they put put there but just our calmness under pressure and how we closed out the game in the end."
The manner in which the Vélez Sarsfield sell-out crowd got behind the home side was intimidating according to Rennie.
The 24 000 supporters cheered buoyantly when the Jaguares scored, and wentquiet when the opposition adding points to the scoreboard.
"It's a tough place to win," added Rennie.
"It's not going to be easy for other teams to come over here.
"We were under the pump massively in the first half, especially at scrum time, but we hung in there and we played at a tempo in the second half that really challenged them.
"We probably should have put them out of it a little bit earlier and been a little bit more patient, but rapt with the way we came back in the last few minutes."
A very successful overseas leg for the Hamilton side as they bagged nine points from their two fixtures which includes an emphatic bonus point victory over the Kings.
The Chiefs' boss is elated with the conditioning of his players after spending a lot of hours in the air in between continents.
"It was incredibly intense," said Rennie.
"They've got a massive pack, you've only got to look at their loose forwards, they're bigger than our locks.
"We certainly emptied out the tank tonight. I think a lot of people said that the travel will take it out of us, but we finished the stronger.
"I know they scored a couple of late tries, but we dominated that second half and we got massive reward from our reserves – our spark plugs.
"I think Brad [Weber] was great, obviously his speed to the breakdown and so on.
"It sort of coincided with the fact that after halftime we played with a better tempo, we carried and cleaned better and created opportunities."
The New Zealanders will have a rather quick turnaround time for their next match. They fly home on Tuesday where they face the Force at home this coming weekend.
"We've planned this months out, obviously, we knew that the first part of our season was going to be tough," explained Rennie.
"We've trained accordingly, we knew that we were going to get about a three or four-week period where we can't get the sort of volume that we normally like."