The Rocket Warehouse (Japanese: ロケットだんそうこ Team Rocket Warehouse) is Team Rocket's base of operations in the Sevii Islands. It is located on Five Island, within the Five Isle Meadow.
Found exclusively in Pokémon FireRed and LeafGreen, this base is where one must travel to get the Sapphire gem. There are a few Grunts and Admins within the compound that the player must defeat in order to reclaim the Sapphire. There are also cages in the back of the warehouse, presumably filled with stolen Pokémon. When the second Team Rocket Admin is defeated, he sees Giovanni's Earth Badge in the player's possession and realizes that all is lost for the Sevii branch, deciding to disband it. Before leaving, he vows to find Giovanni and rebuild Team Rocket. The stolen Pokémon then manage to escape.
The Rocket Warehouse was first featured in Not Exactly Normal as the location where Sird and Carr retreated into after Red's battle with Deoxys on Five Island. Using the Unown she had released from the Tanoby Ruins, Sird was able to follow Deoxys's movements, further relaying the information to Giovanni at the Trainer Tower. While she was communicating with her Boss, Carr found a photo of a younger Giovanni holding a red-haired boy, leading Carr to realize that Giovanni wanted to use Deoxys's divination powers to locate his long-lost son.
In Double Down Deoxys, Bill and Celio raided the Warehouse, recovering the Ruby and Sapphire that Team Rocket had positioned into an amplifier inside the building in order to replicate the climate of Hoenn in the surrounding area and thus allow Deoxys to access all of its four Formes. With the gemstones removed from the Warehouse, Deoxys lost its ability to change into its Normal and Speed Formes in the Kanto region, partially resulting in its defeat by Mewtwo aboard the Team Rocket airship.
The two passwords required to enter the Warehouse in the manga are "Examine the Exeggcute" and "Kibbitz with Kabuto"/"Execute Exeggcute" and "Oh crab, Kabuto".