Star Trek - The Next Generation - Terra Incognita (2019)

Following their clash with their villainous doubles from the Mirror Universe, the Enterprise crew returns to business as usual, little realizing the serpent in their midst - one of their own has been replaced! Six stories focusing on fan-favorite crew members of the Enterprise-D - including Deanna Troi, Wesley Crusher, and Selar - each connected by the machinations of this sinister doppelgänger. What does Mirror Barclay want, and what's to become of his Prime-universe counterpart?