Not teenagers, but young adults (i'd say they're in their mid 20ies...)
Here's the wikipedia article. Contains spoilers. http://en.wikipedia.org/wiki/Kaizoku_Sentai_Gokaiger
here's the first episode on youtube: http://www.youtube.com/watch?v=VXFDtU6l59o The Subs seem decent, haven't watched the show with these subs in particular, but the ones that from overtime that are built in to the videos downloadable from their site. As far as i know there's no proper way to get the series with subs, so fansubs it is.
Here's the wikipedia article. Contains spoilers. http://en.wikipedia.org/wiki/Kaizoku_Sentai_Gokaiger
here's the first episode on youtube: http://www.youtube.com/watch?v=VXFDtU6l59o The Subs seem decent, haven't watched the show with these subs in particular, but the ones that from overtime that are built in to the videos downloadable from their site. As far as i know there's no proper way to get the series with subs, so fansubs it is.