But he returns from the big top with a camel - and the monkey and the parrot.
So begins George's adventures in zoo-keeping - while his wife worries that whatever the war did to him is causing his Noah-like behaviour.
But he persists, finding a spot where he thinks he can create a zoo without cages, only to run into local opposition.
The series was critically acclaimed when it screened in Britain last year, though many questioned why such a period drama wasn't in a Sunday night slot - TVNZ has followed suit by programming it on a Thursday.
George Mottershead is played by Lee Ingleby, best known for his supporting role in Inspector George Gently, while the cast includes veteran actress Anne Reid as George's mum - the show's middle class answer to Downton's dowager countess
Ingleby says he didn't mind breaking the old acting adage about not working with animals and children - young Honor Kneafsey and Amelia Clarkson play the Mottershead daughters, whose childhood was spent alongside Chester Zoo's growing collection of animals.
Ingleby says he enjoyed the character and his motivations for creating an animal sanctuary.
"It makes him happy. It brings calm to him because he suffered from what we now know as post-traumatic stress disorder - which was called shellshock in those days - and it's taken him all this time, 12 years later, to get over that.
"He's suddenly found something that brings peace to him and drives him as well at the same time.
"And so he is going for it and he'll go for it, come hell or high water."
What: Our Zoo
Where and when: TV One, tonight 8.45pm
- TimeOut