Dragon Ball: Sleeping Princess in Devil's Castle
The movie is centered around Goku and Krillin trying to rescue a sleeping princess from within a set of mountains called the “Devil’s Hand.” This task was given to them by Master Roshi, a pervy old martial arts instructor who Goku and Krillin (a young monk) want to be trained by. Master Roshi tell’s them that whoever brings back the sleeping princess will become his student.
As the story progresses, Bulma, Yamcha, Oolong and Puar arrive at Kame Island in search of Goku. After they learn when he’s going, they take off after him in Bulma’s capsule jet. As they approach the mountains their jet is attacked and they’re captured and taken in to the mountains.
The movie comes to an end after Goku is transformed in to the Great Ape by power of the full moon. Everyone escapes and with enough time to chop off Goku’s tail, reversing the Great Ape (Oozaru) transformation. They all return to Kame Island. Master Roshi takens in both Goku and Krillin as his new students.