Roger Smith wakes up every morning in a city that refuses to explain itself, and he keeps moving because stopping means admitting he might not exist at all. The second season deepens what the first one started: a meditation on memory, identity, and whether certainty matters if you're already living the life you chose. Every episode pulls the rug out once more, but by now you're watching for the characters holding onto each other in the dark, not the answers that never come.

Paradigm City lost every memory its people held forty years ago, but relics of that forgotten era remain: giant robots called megadeuses and monsters. Now some people born after the wipe are regaining those old memories and using them to build new dangers. Roger Smith protects the city with the colossal robot Big O, backed by his loyal butler Norman and the android Dorothy. As threats pile up and more of the past resurfaces, doubts grow about Roger's own history and the city's future. This thirteen-episode continuation of The Big O blends mecha action with mystery, science fiction and psychological drama.