Dr. Martin Luther King, Jr.'s historical struggle to secure voting rights for all people. A dangerous and terrifying campaign that culminated with an epic march from Selma to Montgomery, Alabama in 1964.

Although he has been missing for several years and the entire town thinks her father has abandoned her family, Meg steadfastly believes the best and protects her younger brother, Charles Wallace, from the brunt of the rumors and taunting. It is he, however, who convinces her to join him, the school sports star Calvin, and three unusual women on an interplanetary voyage to rescue their father from a vast evil.