The year is 1946, and the Lee family has moved from Chinatown to Downtown Metropolis. While Dr. Lee is eager to begin his new position at the Metropolis Health Department, his two kids, Roberta and Tommy, are more excited about being closer to the famous superhero Superman!

Tommy adjusts quickly to the fast pace of their new neighborhood, befriending Jimmy Olsen and joining the club baseball team, while his younger sister Roberta feels out of place when she fails to fit in with the neighborhood kids. She's awkward, quiet, and self-conscious of how she looks different from the kids around her, so she sticks to watching people instead of talking to them.

While the Lees try to adjust to their new lives, an evil is stirring in Metropolis: the Klan of the Fiery Kross. The Klan targets the Lee family, beginning a string of terrorist attacks. They kidnap Tommy, attack the Daily Planet, and even threaten the local YMCA. But with the help of Roberta's keen skills of observation, Superman is able to fight the Klan's terror, while exposing those in power who support them--and Roberta and Superman learn to embrace their own unique features that set them apart.