White tests out a Pokémon battleground prototype: the Battle Subway. Meanwhile, Black is happily reunited with an old friend...under unhappy circumstances. Then Gym Leader Clay reveals a dangerous secret. Now Black must prove himself to the other Unova Gym Leaders so he can join their team to fight a common enemy—an evil organization that might jeopardize the Pokémon League Championship itself! Will Black earn the trust of the Unova Gym Leaders in time...by ringing a bell?!
- Adventure 29: Drawing Bridges
- Adventure 30: A Stormy Time in the Battle Subway
- Adventure 31: Fight in a Cold Climate
- Adventure 32: Mine Mayhem
- Adventure 33: Underground Showdown
- Adventure 34: Up in the Air
- Adventure 35: The Battle Within