While Cynthia is preparing for the Junior Cup, Ash, Cilan, Iris, and Dawn take a trip to an uninhabited island for some relaxation. However, they soon discover the island is home to several Onix that begin to attack them.
| Title | Expedition to Onix Island! |
|---|---|
| Genres | Animation Action & Adventure Sci-Fi & Fantasy |
| Release Date | 2012-07-05 |
| Episode Runtime | 00 Hours 56 Minutes |
| Season Number | 15 |
| Episode Number | 39 |
| Production Companies | Shogakukan Production, TV Tokyo, OLM, Shogakukan-Shueisha Productions, SOFTX, TV Tokyo Medianet |
