Yuta and his friends attempt to unravel the mystery of the city and everyone else's memories. However, more questions arise when a strange samurai arrives and tries to tamper with Gridman.
You can leave it to us, Gridman.
Gridman, du kannst dich auf uns verlassen.
Puedes dejárnoslo a nosotros, Gridman.
Gridman, fais-nous confiance !
Pode deixar conosco, Gridman.