Star Trek Discovery 4x08 - Creating Haz Mazaro's Karma Barge - Promo Trailer HD - Book (David Ajala) and Captain Burnham (Sonequa Martin-Green) face off in a high stakes card game in "All In" (Season 4, Episode 8), and the Karma Barge provides the perfect gritty backdrop. Stars Martin-Green and Ajala, as well as Executive Producer Michelle Paradise, Production Designer Doug McCullough, and Prop Master Mario Moreira explain how they created this unique location and designed an all-new alien card game.