The production begins with a present-day conflict in the school grounds and the protagonists are transported back to the time of the battle.
"It is also about the inner battles that everyone faces," said Mrs Rooderkerk.
The annual Stage Challenge event is part of a nationwide tour involving 16,000 participants from 200 schools and Whanganui City College and Whanganui High School both represented the region this year.
Stage Challenge aims to motivate young people to engage in positive and healthy lifestyles while providing an opportunity to be part of a professional performing arts event.
Tomorrow night's performance of Te Pakanga is free to the public in the school hall from 6pm.