Polybius

Video game expert Alex Rogan finds himself transported to another planet after conquering the video game The Last Starfighter, only to find out it was just a test. He was recruited to join the team of best Starfighters to defend their world from the attack.

Mercer's brother, an amateur pilot, crashes on an island and is killed by a giant spider. A year later, when Mercer goes in search of him, she discovers a breed of venomous arachnids ready to attack.

Set 15 years after "Twentieth Century Boys," Kanna (Airi Taira) reunites with several main characters from the first film in an attempt to stop Friend's increasing influence over the world and continued plans to eliminate humanity, as detailed in the New Book of Prophecy.