Pokémon : S26 | E66 – System Invasion! Crisis at Orange Academy!!

As Ann and Dewott battle Luka and Roserade, Nemona meets up with Liko, Roy, and Dot. She points out that all the Gym Leaders are here as well, wanting to see how much the students have improved. Seeing Ryme and Larry talking with Geeta, Liko immediately notices that Grusha isn’t here. The trio says that they’re battling in the second half, which Nemona is looking forward to. Suddenly, Dot gets a call from Penny, who tells her to meet up quickly for a talk in the nurse’s office, brushing aside Dot’s objections about her being about to participate in the tournament before hanging up. Dot goes off to find Penny, leaving the others confused. Dot arrives at the nurse’s office, where Penny startles her by coming out from behind a curtain. She shows Dot that the school is being hacked, and the culprit is Agepan, the suspicious teacher. Penny also reveals that Agepan is connected to the Explorers. After hearing that Dot and her friends have a long history with these people, Penny asks her to tell her more about them. After hearing that they are after the Black Rayquaza and Terapagos, Penny thinks they must be dangerous. Dot points out that Clavell showed them info on Terapagos sightings in Area Zero. Penny gets an idea about what they’re up to, going with Dot to the principal’s office. Dot realizes that they want to steal data on Terapagos from the PC in the office, and this is the perfect time since all the teachers are outside watching the tournament.
(Source: Bulbapedia)