You managed to get all 8 gym badges! After several tough challenges you arrived on the Indigo Plateau were you gonna face the strongest trainers in the region! You get your best team and go face the challenge ahead, that is on the way for you to become the champion of Kanto.

After healing your Pokémon. You enter a metal automatic door. Then run into a guard, he stretch his hand to you.

Security: "Gym badges and I.D."