Kaseki's efforts to build the science vessel Perseus hit a roadblock when he realizes that it's impossible to get all the parts to fit in practice.
We don't know what kinds of 
enemies we're going to meet.
.لا نعرف نوع الأعداء الذي قد نصادفه
Wir wissen nicht,
was für Gegner uns erwarten.
Qui sait quel ennemi on rencontrera ?
Non sappiamo che razza di nemici potremo incontrare!
Não sabemos que tipo de 
inimigos vamos encontrar.
Мы же не знаем, с каким
противником столкнёмся.