The cadets fight Asencia in a battle for control of Solum and the future - but a sudden invasion by a destructive species complicates their end-game.

Cast: Rylee Alazraqui, Dee Bradley Baker, Brett Gray, Angus Imrie, Ella Purnell, Jason Mantzoukas, Kate Mulgrew, Wil Wheaton, John Noble, Robert Beltran, Robert Picardo, Jameela Jamil, Michaela Dietz, Daveed Diggs, Gates McFadden, Jason Alexander, Ronny Cox, Erin Macdonald