Star Trek: Discovery, Series 1, Episode 3.
First broadcast on Sunday 1 October 2017. Stardate: Unknown (2256).

This week, disgraced Starfleet officer Michael Burnham falls down the rabbit hole, where she finds an unsettling mirror image of her previous life: a crew regarding her with suspicion, a captain manipulating her with falsehoods, and a Starfleet obsessed with operational security. And then the slavering monster shows up.