1974 (or: Zellion Hadrax IV and the mystery of the extradimensional towers)

In 2004, an officer for a security agency that regulates time travel must fend for his life against a shady politician who has a tie to his past.

During routine manoeuvres near Hawaii in 1980, the aircraft-carrier USS Nimitz is caught in a strange vortex-like storm, throwing the ship back in time to 1941—mere hours before the Japanese attack on Pearl Harbor.

When 17-year-old Makoto Konno gains the ability to 'leap' backwards through time, she immediately sets about improving her grades and preventing personal mishaps. However, she soon realises that changing the past isn't as simple as it seems, and eventually, will have to rely on her new powers to shape the future of herself and her friends.

Angel City trooper Jack Deth is sent back in time from 2247 to 1985 L.A. to inhabit the body of his ancestor. Deth's assignment is to find his archenemy, Whistler, who turns people into zombies, before the fiend is able to kill all the ancestors of the future's governing council.