Treasure Island Kids: The Mystery of Treasure Island (2006)

Conrad has invented an airship like never seen before and a strange mood has fallen over the campers. Ashoka, a boy from India, has gone missing and the girls have discovered an ancient statue. When Charlie and Miranda investigate, they discover the island has been visited by an alien space traveler. Their first instinct is to report to scientists on a nearby island, but by the time the helicopters arrive with the investigation team, the kids have bonded with the alien. Now, the kids must help the alien escape before it is captured and used for science experiments.