Zac Power is an Australian children's book series by a team of writers under the corporate pseudonym H. I. Larry. The series is based upon the adventures of Zac Power, a twelve-year-old boy, and his fifteen-year-old brother, Leon. Zac is a secret agent for the fictitious intelligence agency GIB (Government Investigation Bureau), and Zac's adventures frequently see him saving the world. The series was published by Hardie Grant Egmont.
The Test Drive and Spy Camp/Spy Recruit series are designed for younger readers, with larger print and lower word counts. Both series are listed on the NSW Premier's Reading Challenge years 7âÂÂ8 list, whereas the other Zac Power series are on the years 9âÂÂ13 list.
Test Drive consists of 16 books, written by Louise Park (published 2009âÂÂ2010) and Spy Camp of eight (published 2010).
The Mega Mission (2008) and Extreme Mission (2009) series each have a continuing story that spans four books. They have both also been published as single-volume âÂÂfour books in oneâ editions. Authorship for all eight books is claimed by Chris Morphew.
Zac Power Ultimate Mission is a single-volume chapter book (264 pages).
Published in 2011, each book in the Special Files series contains two stories from the original Zac Power series.
Author notes: [HB] Hilary Badger; [MB] Meredith Badger; [CM] Chris Morphew; [CMi] Chris Miles; [ML] Mat Larkin;
All four books published 2008; Zac Power Mega Missions collection published 2009.
All four books published 2009; Zac Power Extreme Missions collection published 2010.
On 1 May 2019, Screen Australia announced an upcoming animation film called Zac Power - The Movie. Australian TV producer David Webster has been hired to direct the film, who also wrote Erky Perky. It is based on a script written by John Armstrong and will be produced by Barbara Stephen, Patrick Egerton and Celine Goetz, who have all worked on various Australian animated films with Cheeky Little Media and Flying Bark Productions producing the film. At some point during production, Armstrong was replaced by Erica HarrisonÃÂ and Lawrence Leung.
On 14 October 2025, a new film was reported to be in production with the film being produced by Cheeky Little Media and Flying Bark Productions with Brisbane-based animation studio Pixel Zoo Animation Studios joining the upcoming film adaptation as co-producer, while Kylie Cantrall, Matt Lucas, David Wenham, and Ed Oxenbould were some of the cast members listed. In that same month, American film studio Paramount Pictures took distribution rights to the film in Australia and New Zealand whilst Flying Bark's parent Studio 100 acquired international distribution rights to the film outside of Australia.
The filmâÂÂs first teaser was released on March 10, 2026.