Batman and Robin are in a South American Republic, helping to catch a small rebel group led by Diaz. But the rebels aren't the only thing they need to worry about when a creature covered in four stripes of red, green, yellow, and blue invades the town. With its red stripe, the beast can burn it's way through buildings, while the blue color lets it freeze any projectiles coming towards it. Green turns objects into mist. Each time, the colors fade to white after use. When Batman and Robin try attacking it, the rainbow beast uses the yellow stripe to temporarily turn them into paper-thin figures that blow away with the wind. Strangely, the creature aborts it's attack afterwards, and retreats into the woodlands.