Bleach Episode 24- Assemble! The 13 Divisions.

In order to use the cannon to enter Seireitei, Ichigo and his friends must first learn how to focus their spiritual energies in order to use an item called a Spirit Orb, a task Ichigo finds especially difficult. Within Seireitei a meeting of all the captains in Gotei 13 is held to discuss how to deal with the invaders. The meeting is interrupted by an alarm indicating someone has infiltrated Seireitei.