Redtube Importer/Embedder is a popular WordPress plugin which helps you to import a tons of videos from Redtube very easily.
Like all XWPThemes products, it comes with around the clock support available on the Skype or through email.
You can import videos by:
– Searching the keyword
– Any page contains videos
– List of single video urls
this video will explain all what this plugin can do (Example by Xhamster Import plugin, this plugin is the same):