Giovanni is the leader and boss of Team Rocket.
Operation Tempest
Giovanni arrived in East Isshu to kick off the final stage of Operation Tempest. The mission was to use
Meloetta to unlock the Reveal Glass in a temple that disappeared in the sea which was never again to be found. The Rocket Gang was able to find that temple, capture
Meloetta and unlock the Reveal Glass and attempted to conquer the entire Isshu region.
The Reveal Glass was operated by
Giovanni who used it to summon Landlos, Tornelos and Voltolos. He was not able to control them for long as
Ash Ketchum and his friends intervened and stopped him from controlling the trio. The mirror somehow affected
Giovanni but
Jessie,
James and
Meowth got
Giovanni away from the main centerpiece on the floor which stopped the control over
Giovanni as he was attempting to destroy the Isshu region, not conquer it. After his ambitions were prevented., he then decided to return to the Rocket Gang headquarters in the Kanto region.