Francisco Ramon discovers he has unusual vibrational powers, and goes to the Justice League for help. Barry (The Flash) is chosen to train him, so that someday he might be able to join them. Francisco doesn't realise what he's being trained for, and when he finds out, he refuses to carry on. But when Starro the Conquerer sends a counter-attack, carried out by robot Samurais, which Francisco decides to call Samuroids, he must remember what Barry taught him and embrace his powers to stop them from doing any harm.
