Tora's person, a carpenter named Tome-san, has built a small castle which has become a splendid place to play for Tama and Bull and the others. However, the boss dog from 7th Street, Waka, has decided that no one is allowed to have a castle but him! He orders Bull to destroy it, but...

Tama and the others hear of Waka's plans from Bull, and they decide to go ask Grampy, an old dog on First Street, how they can protect the castle. With his lackey dobermans in tow, Waka comes to Third Street to take over. The showdown at Tama and friends' castle starts now!
When you imagine getting 
picked on by my friends...
...عندما تتخيل تنمر رفاقي عليك
Der Gedanke,
das Katzenschloss zu zerstören,
Piénsalo. A cambio
de que no te maltraten mis amigos,
Piénsalo. A cambio
de que no te maltraten mis amigos,
Je pense que tu préfères
détruire le château des félins
Se pensi a cosa ti faranno i miei amici,
Se pensar que pode ser
maltratado pelos meus amiguinhos,
Представь, как тебя будут
доставать мои друзья.