After killing the President, the Cybermen are after the Doctor, Rose and her father.  They escape but are unable to save Rose's mother.  Mickey, meanwhile, has teamed with Rickey, and they help to save the Doctor and Rose.  The group determines that the Cybus Corporation have processing plants everywhere and that the UK is just the beginning.  They plan to stop them.  Mickey and Rickey team up to take out the Cybus dirigible and Rose and her father try to rescue her mother.  The Doctor teams with Mrs Moore to try and halt the processing.