Season 5 episode 16 The Lost Island is actually two episodes, part 1 and part 2. In part 1: the OSI agency loses one of its satellites, which crashes on a remote ocean island, and is now cracked and leaking neutron radiation which is negatively affecting the other-worldly humanoids that inhabit the island and electromagnetically cloak it in invisibility. A decision is made by the aliens to send Da Nay, a young alien woman, to the U.S. to find and bring back a serum that will boost the aliens' immunity and thus allow all the aliens to leave the island and survive with the human population. In part 2: Da Nay (Robin Mattson, who plays Heather Webber from the "General Hospital" soap opera) obtains the serum and returns to the island, where Steve Austin has found a way in past the protective barriers. Spoiler: Arta (Tony Geary, who plays Luke Spencer from the "General Hospital" soap opera), one of the radiation-influenced young male aliens who feels a somewhat barbaric attraction to Da Nay... Written by
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DaNay is supposedly flat-lined, yet she helpfully turns her head to the other side when Rudy removes her pillow in preparation for defibrillating her. See more