Star Trek Discovery 2x12 Through the Valley of Shadows Promo trailer - Season 2 Episode 12
Airdate: April 4, 2019 on CBS All Access - Synopsis: A fourth signal leads the U.S.S. Discovery to an insular world, where Pike is forced to make a life-changing choice. Burnham and Spock investigate a Section 31 ship gone rogue, leading to a discovery with catastrophic consequences.