Complex sentence: Meanwhile, Jason, Kimberly, Bulk and Skull work up a plan to escape Divatox's submarine; all but Jason manage to escape, but Kimberly is later captured by the Malakhians natives who inhabit the island and reunited with Jason under Divatox's capture.
Split into simpler sentences: Meanwhile, Jason, Kimberly, Bulk and Skull work up a plan to escape the submarine, all but Jason manage to escape. But Kimberly is later captured by the Malakhians and reunited with Jason under Divatox's capture.