Falkner was born and raised in Violet City, where he trained to become a Flying-type Gym Leader. His father gave him the Violet City Gym when he retired, where Falkner then resided.
Like many Gym Leaders, Falkner decided to take a trip, which he decided to see all the different Flying-type Specialists he had met over his time as a Gym Leader. He accidentally arrived in Unova after taking the wrong plane, intended to take him to Hoenn. He revealed that he then found out about Skyla and organised a meeting with her.
The Alexis Saga
Falkner first appeared in Best Wishes, where he was visiting Mistralton City to see Skyla a fellow Flying-typeGym Leader. He previously witnessed Alexis and Skyla's battle, and ended up meeting the group. During this first encounter, he captured a Shelmet.
Falkner then reappeared in Drifveil City where he joined the group. During his time in the group, he captured a Roggenrola and participated in Musicals. He then departed the group as their first stint in Unova came to an end.
Falkner made a small appearance during the events of M03 and M04 where he helped battle and takedown the Ghetsis Initiative. He was unfortunately injured during the battle, and his current condition is unknown. It was hinted by Brock that he had recovered, but Officer Jenny hinted that he had passed away, however it was never officially revealed.