Near Vertress City, after Ash and his friends end up making a wrong choice of climbing over boulders and fell off the cliff to their death, they're being saved by a boy name Virgil who has an Eevee and an Espeon. Apparently, he's one of the Pokémon Rescue Sqaud and his team is called Team Eevee with a whole evolved forms of Eevees. All the Eevee evolutions are known to be boys, but Virgil makes a remark that the unevolved Eevee is a girl. When Virgil's brother Davy, who has a Stoutland were assigned by their father Jeff, took off to inspect the dam that has been frozen, and tried to evacuate the workers, he's now trapped inside the control center when a wild Cryogonal appeared in the area. Virgil and ash and company go out to save Davy.
They arrive and find the door rusted shut. Vaporeon uses BubbleBeam to scrape off the rust. Then Glaceon and Umbreon make a key. Virgil and company go inside. The power is out, so Virgil uses Umbreon flash. They use Jolteon to electrocute the machine. Pikachu helps. Then Davy is able to save the worker in the elevator. He goes into the basement to investigate the odd noises. Virgil and company are fighting the five Cryogonal. Eevee rescues Davy and he realizes that the Cryogonal were looking for its friend. Later it is realized that Ash has a new rival, Virgil, is going to the Unova League!
This episode, also focusing on Eevee and its evolutions, aired less than a week after the announcement of this tournament.
This episode holds the record for the most amount of Pokédex entries in a single episode, that being nine. The scanned Pokémon were Eevee, its evolutions (7 at time, excluding the Generation VI's Sylveon), and Cryogonal.
The Pokémon Rescue squad has some links towards the rescue team International Rescue of the famous Thunderbirds series:
They both are rescue teams that help those who need it
While the sons go on their missions, the father stays behind and leads