Now deep under the ice-crusted surface of the planet Poilant in search of a missing team of Starfleet researchers, Una, Chapel, La'An, Spock, Scotty, and D6 discover a mysterious alien temple. It's covered in vines and the tech on the crew's submersible is showing the researchers are inside—but before they can investigate further, a new enigma appears... and this one's got tentacles!