And the Highlanders cough up possession near halfway.
Ngatai makes his way inside the 22.
Down to the five-metre line but the Chiefs lose the ball.
Sopoaga clears down to the 22.
The Chiefs looked a real chance there but Cruden tried to pop the pass over Treeby's head, only for the Highlanders man to knock it back.
Chiefs with a lineout now, just outside the 22.
Cruden cuts through inside the 22 before being brought down.
Can the Highlanders' defence stand up to all this pressure?
Chiefs down near the line again, swing it wide to the right.
But the Highlander pinch the ball after a poor pass, clear deep into Chiefs' territory.
Cruden with a little kick over the top and the Chiefs reclaim.
But now Joe Wheeler does some great work in the ruck to win a penalty. That's the 10th time tonight the Chiefs have been pinged.
Sopoaga puts the kick past halfway.
Chiefs win the throw and take possession about 10m inside their own half.
James Lowe has replaced Muliaina.
Another brief break in play as we await a Chiefs scrum.
15 minutes left and the Chiefs need a try.
Loose pass almost picked off by Winston Stanley but he just knocks on. Another scrum for the Chiefs inside their own half.
Chiefs spread the ball to the left before Ngatai kicks deep for Ben Smith to claim.
Smith returns fire and the Chiefs now attack down the other sideline.
Liam Squire charges into Highlanders' territory.
We're just checking upstairs for potential offside.
And the try is awarded. Tie game.
Squire set that up with a huge burst on his Super Rugby debut. Then Cruden kicked across field, where Tikoirotuma challenged Buckman for the ball. It bounced clear for Ngatai to scramble over in the corner.
Cruden now with the chance to put the Chiefs ahead.
The kick is just inside the right sideline, so it will be tricky.
But Cruden makes it. 21-19 to the Chiefs with 10 minutes left.
Now can the champs hang on?
The Chiefs claim the kick-off cleanly and set about their work.
Nanai-Williams kicks into the Highlanders' half where Ben Smith takes.
The Chiefs' defence passed a serious examination last week, now they have another small lead to hang onto.
Scrum for the Highlanders as both halfbacks are replaced.