When Valerie returns home from prison years after killing her neighbour in an apparent drunk driving accident, she wants nothing more than to move on - until the deceased's son shows up at her door and it becomes clear that the past is not easily forgotten.
Barry Allen wakes up 9 months after he was struck by lightning and discovers that the bolt gave him the power of super speed. With his new team and powers, Barry becomes "The Flash" and fights crime in Central City.
Lucifer Morninstar has decided he's had enough of being the dutiful servant in Hell and decides to spend some time on Earth to better understand humanity. He settles in Los Angeles - the City of Angels.