This will be the sixth year running the 7 Days Live show has taken to the road and audiences can expect...well pretty well anything really.
Being live, rather than edited like the television show, it can tend to become slightly risque and occasionally unpredictable.
"I love the live thing because you never know what's going to happen and of course you can't go back and cut something out."
The first half of the show features each member of the team rolling out a quick-fire stand-up comedy piece and then they gather for the 7 Days set.
They have two travelling producers who set things in motion on that front, and they effectively localise some of the ever-changing content.
"They check out the local papers — see what's in the news and maybe get a couple of local politicians along."
Which means each show is different.
"What Napier people will see will be absolutely unique — their show."
Henwood said he felt privileged to work with a creative and diverse crew of people.
"It is a pleasure to go to work and hang out with your mates," he said.
And during all those tours and all those miles (they do a lot of driving) there has never been a blow-up between personalities.
They all just simply get on and draw creative inspiration from each other — which includes the occasional sharp jibe or three of course.
On that front Josh Thomson may get a couple given that he is wearing a moon boot and using crutches after a "ninja warrior" course he took on recently ended in his damaging his leg.
"So he'll probably start the show...have to put the slow ones on first," Henwood laughed.
And for some audience members there is the chance to make it onto the stage as part of a slice of the show called My Audience Member Could Draw That.
"Always good to get the locals involved," Henwood said.
Being part of the comedy scene in New Zealand was Henwood's dream since university, and he said it was the only job he ever had.
"Apart from some bar-tending and going to school."
His father, actor Ray Henwood, had always been supportive although Henwood said he told him in the early days that if he wasn't able to make a living out of it in five years he'd need to move on and consider doing something else.
Five years later he was under way and has been at the forefront of the Kiwi humour industry since.
After hundreds of shows and appearances the nerves are still there, but that's the way it has to be.
"If you're not nervous then you shouldn't be doing it...and nerves are all about excitement."
And he and the 7 Days Live crew are promising plenty of that.
● 7 Days Live, December 11 at the Napier Municipal Theatre. 7.30pm. Tickets through ticketek.co.nz