In the near future, Ultra Energy has developed a method to use parallel universes to obtain new energy, and cordially invites pilot and physicist William Porter (Dan Stevens) to assist. Because he has to take care of his sister Mia, who is a single mother, and his nephew Tony, who suffers from mental illness, William declined Ultra's invitation, but later, with a strong sense of mission and curiosity, decided to join the new plan. Unexpectedly, when William traveled to another universe, the system was unstable and the universe was about to collapse. Faced with the pursuit of mecha and rebel organizations, William must do his best to protect his beloved family and the real universe and solve the great crisis as soon as possible.