Gyakuten! Ippatsuman

Gyakuten! Ippatsumen was a 1982-1983 Japanese anime television series that aired on the Fuji TV network. Set in the then-future 1990s, it followed the employees of Time Lease, a popular leasing company, who discover that their main corporate rivals not only want to steal their business, but also want to take over the world.

Unexpected Cordon of Cordeaux (Season 1, Episode 57)
Con Cordo's criminal empire is falling apart, and the valuable Psychic Robot data is safely stored away in a Time Lease vault. However, she has one last ace up her sleeve- Time Lease manager Haruka, who is actually a brainwashed sleeper agent. Con Cordo activates Haruka and has her steal the data from the vault.

Great Reversal! Victory of Ai! (Season 1, Episode 58)
The brainwashed Haruka brings the Psychic Robot data to Con Cordo, who is actually an alien out to destroy all of humanity. A flashback reveals that Con Cordo kidnapped and brainwashed Haruka eight years ago. Con Cordo then lures the Time Lease team to her hideout, where Haruka (now outfitted with a set of Psychic Robot armor) is ordered to destroy them.