The 18th show in Tsuburaya Productions' Ultraman series. Ultraman Nexus follows Kazuki Komon, a first responder who joins the Night Raiders, a secret group that battles murderous monsters called Space Beasts. Komon's life is changed after the mysterious giant called Ultraman saves his life, but is shocked to find that the Night Raiders' parent organization, TLT, is inclined to view Ultraman as a threat.