Ash and Goh decided to look for a Falinks after being informed of the Pokémon at the Cerise Park. While in the Galar region, they encountered a Falinks that scattered its leader and troopers after Ash's Pikachu attacked them with Thunderbolt.
While the Falinks brass and troopers were separated, Goh helped build the leader's confidence in leading and commanding while Ash dealt with the troopers following Pikachu. When the brass and troopers reunited, they were able to follow commands and even successfully fight an Eiscue while staying in sync.
At the Cerise Laboratory