Aidan was a firefigher who primarily used Wartortle to extinguish fires. Ash's Squrtile had a rivalry with their leader and took some tests, proving they are equally strong. Though they were captured by Team Rocket, Wartortle and Squrtile worked together and were freed. Aidan led Team Wartortle to the city, where there was a big fire. The Wartortle leader went with Squrtile and they saved an imprisoned child from the fire, and each other. Aidan was grateful and said goodbye to the heroes.