Mistress Vile, formerly known as Rita Repulsa, and Dark Specter have invaded the Morphin Grid, but it will take far more than just the Mighty Morphin and Omega Rangers to stop them!

As the dark contagion spreads and puts the Rangers in their most vulnerable state yet, the HyperForce Rangers will have to scour the multiverse for as many unexpected allies as they can, while they're pushed to their limits...