The DIY club’s tree house plan is moving ahead. The items they made are selling, so they’ll soon have the money they need. With the club’s input, Serufu draws concept art to base the blueprints on, but no one has drafted anything this big before!
but never for something as big 
as this secret hideout...
لكن لم أضعها أبدًا لشيء كبير
...كمخبئنا السّرّيّ من قبل
Aber bei etwas so Komplexem
wie diesem Geheimversteck
pero para un escondite secreto…
pero para un escondite secreto…
mais pour quelque chose
d’aussi gros qu’une cabane,
ma per qualcosa di grande
come il nascondiglio segreto...
Mas algo grande como
este esconderijo secreto...
но наша секретная база
намного больше...