SSSS.Gridman

SSSS Gridman is a Japanese anime television adaptation of the 1993–1994 tokusatsu series Gridman the Hyper Agent. The production is a joint collaboration between Tsuburaya Productions, the production company behind Gridman and the Ultra Series, and Studio Trigger. The two production companies previously collaborated on the Denkou Choujin Gridman: boys invent great hero short original net animation for the Japan Animator Expo. The "SSSS" in the title stands for "Special Signature to Save a Soul" as revealed in the final episode. It is also a reference to Superhuman Samurai Syber-Squad, a US adaptation of Gridman the Hyper Agent. The series premiered on October 7 and ended on December 23, 2018.