The Road Rovers travel to England to fight a group of werewolves wreaking havoc. They return to MissionControl seemingly safe, but when ""werewolfy"" things start happening there, it is obvious that one of their teammates is infected. But which Road Rover is it? And can they stop their infected comrade before he/she destroys mankind? (Not to mention devouring all their kibble!)
Parvo is now running an operation of kidnapped dogs! Colleen and Shag sneak themselves into the facility where they find not just a few dogs, but hundreds! Parvo's plan is to transform them into his servants at his leisure! How will Colleen and Shag escape? And will they rescue every single one of the dognapped pups?
General Parvo's new plan is just letting his new breed of fighters destroy the world! The Road Rovers find themselves facing three mutant insects! They receive no help from Muzzle, who has fallen head-over-paws in love with Parvo's female rottweiler, Greta. Will they deal? Will Greta leave Parvo to join the RRs?
After discovering an amazing tool, Parvo goes back in time in the form of a cat! He becomes the pet of Professor William Shepherd, who is just perfecting his Trans-Dogmifier. Parvo plans to derail Shepard's ideas, thus ruining the future of Road Rovers! Parvo's past is revealed as the Rovers hunt him down.